The Ancient Ocean Beneath the City of Baltimore

[@karenschunk2192]

I have a secret about Maryland; I have always been fascinated by geology. One day, while hiking, I found a vein of green volcanic glass. I took the specimen I collected to a geologist friend (also Towson University) and asked him to identify it. He confirmed volcanic glass and asked where I got it. I told him the general location and he said, "That is impossible, there are no volcanoes east of the Mississippi." The enigma of this igneous rock is that it is roughly the size of my fist, green, and imbedded with fossils. There is also quartzite running through it. He was stumped but curious and told me to contact the Smithsonian. So I did. Why not? I sent them detailed pictures and a description and was utterly amazed to get a response. However, the Smithsonian geologist replied the exact same way, "No volcanoes east of the Mississippi." She also said that the specimen was too large and would never have survived the immense pressure it would have had to endure to arise to surface level from such ancient tectonic force. She said it was slag. Makes sense. However, the rock exists and I know it is not slag. Many years later I was hiking along a forgotten train line. Lo and behold, on a discarded mound, I spotted a specimen almost identical in appearance to my rock. It was perfect. I had found slag! It was dark greenish grey, significantly lighter in weight, larger bubbles, No truly sharp edges, and obviously, no fossils or quartzite. Visually it would absolutely look the same to the Smithsonian geologist who was kind enough to respond to me. In person the two specimens are absolutely different. I have other chunks from that vein and know what I have. I researched the history of the area even though I already knew it was geographically impossible for any industry to exist unless the the area was blasted into oblivion. It is pristine and relatively remote/rural. There was never a train line or factory of any kind for many, many miles. It is absolutely volcanic glass. I also have a Klerksdorp sphere. I found it randomly in the dust of South Africa. If feels like iron. It is not magnetic. It is pretty darn cool.

[@danielgrove7782]

Very cool

[@ImprovisedExpletiveDevice]

where in MD did you find the volcanic glass?

[@StraightNonsense]

Where though?

[@senoJSR]

Impact crater in the bay en.wikipedia.org/wiki/Chesapeake_Bay_impact_crater

[@terril.3030]

What a great find, md just goes to show you, so many unknown facts about our world. Exciting!

[@warriormom_of_many]

I live in Maryland and I never knew this. This is definitely something very interesting. Thank you for putting this together.

[@natru2dagame]

Now walking through Druid Hill and Leakin Park going hit different. I thought the rocks were beautiful. Now i know why Thank-you Sir.

[@beefstew4698]

Lincoln Park?

[@natru2dagame]

@beefstew4698 Yes, I know the stories.

[@YunginsTakinRisk]

🐐

[@zacktimmons2886]

I never thought I’d see a geology video in west Baltimore.. i was born and raised in hampden. Great video. Subscribing for sure

[@yehudahlioness8544]

Aaah, yes. I just drove through Hampden today. I will now call myself a " Baltimore Ophiolite".😅 Great and eye opening presentation. I wonder if we have gold here too!

[@BobbyNotBrown]

Are you from hampden or did you move to hampden when it was cool like everyone else

[@Edmondson_Avenue]

Hampden is North Baltimore

[@Bmoreknowledge]

@@BobbyNotBrownno Hampden was cool before u people moved in u guys destroyed that neighborhood

[@zacktimmons2886]

@@Edmondson_Avenue yes I know that lol… I was just making it known that I’m from Baltimore lol

[@vhhawk]

Remnants of ancient oceans and continents. This stuff always blows my mind.

[@kennacrane899]

I know! Total mind blower!

[@Catnado5000]

You should visit Calvert Cliff Museum

[@BoogieShoogie]

Then look up Lake Lanier in Georgia. Or Oscarville, GA. There you will find some real untold American history.

[@johnwells268]

Grew up in West Baltimore on the edge of Leakin Park. We spent weekends walking creek beds looking for unusual rocks before a wonderful trip out west in 1969 in our Rambler station wagon. We picked up so many rocks we had to UPS a box full back home because the poor Rambler was bottoming out with the five of us and rocks everywhere. So interesting to understand the rock situation in Baltimore with the large variety. The churches are a great tool, many have very different rocks obviously from differing quarries nearby. My dad enjoyed the flagstone quarried out near the west Patapsico Park area. Great video.

[@drownthepoor]

What I would give to have traveled the US in 1969.

[@squeezeb0x]

My grandfather was the late William Patrick Crowley, prominent geologist in Baltimore (who's life ended in tragedy due to his work) If he were still around today I'm sure he'd be making content like this. You'll notice his names on several of the maps detailing the local geology.

[@Muskoxing]

As a grad student in Prof. Viete's lab, I can tell you that your grandfather's work is held in the highest regard. Back before plate tectonics was a widely accepted theory, he made the decision to map everything in a plate-tectonic framework and turned out to be absolutely right. We still go by his interpretations today. Legend!

[@squeezeb0x]

@@Muskoxing Thank you so much for sharing this. He is such an enigma to me as I never got to meet him so any little bit I can learn helps me to build a picture of him. Many of his belongings have been passed down to me including his old circumferentor. I'm glad his legacy and accomplishments are not forgotten and would love to hear more.

[@chibi013]

Very cool to see someone from my alma mater talking about Baltimore!!! I love living in such a geologically historic place

[@Patnac10]

George should get an A+ on his assignment!

[@Libertaro-i2u]

Agreed.

[@heruapocalypse2021]

Wow! This is Fascinating to learn about My fair City of Baltimore M.D. 😎👍🏾

[@MrStateoftheCity]

No periods needed to abbreviate Maryland.

[@nicholasbeck1558]

Really enjoyed your presentation. Outstanding graphics. Clear monologue. Great rock examples. Thank you for your thoughtful work.

[@Fanrule]

Baltimore born and raised and never HEARD of this...the whole city is SURFING...thanks for the enlightenment. 😁

[@annemarie5273]

Think of all the streets that have collapsed in bmore

[@mikebonsignore4121]

GIS major and Towson grad here, Great vid man!!! love to get more engaged. Super cool stuff ✌🏼

[@serega13]

Usually when people talk about rocks from Baltimore, they talk about something completely different...

[@deanevangelista6359]

You hit that one right on the (crack) head!

[@deantonto1615]

Lol undefeated comment

[@beagler4234]

lol ain’t that the truth

[@DreonaHathor]

😭😭😭😩😩💀

[@ReggieCox]

😅

[@ItIsOverThere54321]

Great video, thanks for posting and good luck with the channel.

[@YvonneBeard-zh5uw]

I've always wondered why there's so mych much water in Baltimore...it's everywhere...when you ride the highways bridges anywhere there are so many rivers, creeks, lakes and other bodies of water in and around Baltimore...my home town born and raised

[@specopswolfmp]

I used to live in W.Bmor, YOU SIR are very brave. LOL

[@inigoloyola1869]

I don't have a particular interest in geology, but I stumbled across this video and found this interesting. It just brings me joy to see others happily explain their interest/world of study. :) Keep up the good work!

[@kevinmoore9524]

George should get an A+ on his assignment. Thank You.

[@mellissadalby1402]

Since I live in the Baltimore area, and not far from Leakin park, I find this very interesting indeed.

[@Stitcher_in_MD]

So interesting! Thanks for sharing. I have rocks from all sorts of places and just love their histories!!

[@ms.donaldson2533]

I have spent my entire life in Baltimore learning it's history and how it's landscape was reformed from dense forest with fresh streams to the concrete jungles that encases the currents. The "known" science world is about to be shook with the introduction the solar/earth connection and its effects on earthquakes, hurricanes and crustal uplifting. @Suspicious 0bservers Thanks for a local show!!! Great video, but never stop questioning. Not even science has all the answers.

[@eliesermejia55]

This was great. Thank you!

[@gsmith4295]

Very Interesting video. Any way you guys could do a study of the area of Granite Maryland? I remember when the earthquake hit Germantown years ago. We were sleeping with the windows open when we heard a loud boom like they were blasting in the mines (but they dont blast at 4 something in the morning) then the entire area just rang like a bell for a few seconds. I know this entire Marriottsville area has some interesting geology.

[@Rubeless]

I remember that. Felt as if my bed was lifted off the floor and dropped.

[@baddestjoanna-michellesmit5578]

Yep sounds suspect.

[@terribrown7587]

How cool. I learned something new today! Thank you

[@iamaloner8057]

Crazy I grew up playing in Gwynn Falls and Leakin park. My Grannies house was right in Fairmont park. Me and my cousin use to say those boulders were from the dinosaurs ages😂😂😂😂😂

[@joycefairfield9102]

I am interested in how the Avalon and Taconic orogenies sculpted the piedmont north of Baltimore. I have found evidence in the rock record that the Gunpowder River used to be 200+ feet above where the current river bed is today. Is the ophiolite which you speak of deposited at the same time as the Cockeysville Marble? I look forward to more content. Well done.

[@DanielViete]

Hi, in this part of the world we are lucky to have a geological record of multiple cycles of continental breakup, ocean formation and then closure. To the best of our knowledge, the Cockeysville Marble was deposited on the Iapetan passive margin, prior to initiation of subduction in the Baltimore sector of the Iapetus Ocean (and formation of the ophiolite). Locally, the the major mountain-building episode was the Acadian (Avalon) event, around 380 million year ago, which resulted in widespread metamorphism of the rocks of the Baltimore area. The Piedmont bedrock has undergone exhumation (and sculpting) since around 200 million years ago, when Pangea was rifting to form the Atlantic Ocean.

[@kaywischkaemper4259]

You did agood, quick job of explaining tectonics and ophiolites and on the east coast no less - bravo. Recently got to go to Oman and see those exposures of the whole ophiolitic sequence. There being no vegetation sure made seeing it easier. Thank you again for making the video

[@geologyjoerocks]

Nice video! We have a section of ophiolite from the old Farallon Plate exposed just north of the Golden Gate Bridge in California. You can spot pillow lavas from the highway even!

[@alwayscurious599]

Thank you! Very well done

[@JohnRounsevelle-jt3he]

I was blessed to have a field class in geology at pgcc ms sally’s class was the best i’ve ever had she didn’t just quote facts at us she took us to various sites throughout our region to back up and to illustrate the types of geology in md and surrounding regions she instilled in me a love for geology these are the types of classes that need to be promoted and taught throughout our educational system! if eduction is meant to inspire a love of learning ms. sally definitely fulfilled her job and then some JRR

[@oooolah]

When I worked for the state I got to take a guided tour of the Maryland Geological Society. Such a cool building downtown and some truly passionate people!

[@alsehl3609]

Thankyou for the interesting video! Surprising you can find any rocks with all the lush vegetation! Same where I live, invasive species are fast growing and taking over everything. We have so much rain, we are living in a deciduous tree rainforests.

[@happyjojo626]

Fascinating . Thank you!

[@exf20]

Now, I don't believe that the Earth is 500 million year's old. That is a bit of a stretch. But, that's another fascinating thing to learn about the rocks developing in Baltimore though.

[@ImGettingOld911]

Interesting! Thank you!

[@myronmason8170]

Subscribe from a Baltimorean! A nice video and very interesting!

[@jessicaconnordawson888]

As a woman who grew up in inner city west Baltimore, and graduated from Towson University, this was all amazing to learn and see.

[@GickelsGaming]

in the third grade, my buddy and I dug a nice sized piece (10-15 pound) of milky quartz out of a hillside at our playground in Fredneck. the tip was sticking out of the ground and at lunch break we'd go dig around this thing every day until one day we got it loose enough to roll down the hill. He kept it- still has it, and he mounted it on a small stand. we're in our 30's now and im amazed he cleaned it up and kept it all this time

[@XJag9684]

I was working with a crew a few years back, we were working in one of those new neighborhoods north of Libertytown that day. There is a house with a boulder of Quartz in the front yard about the size of a small Toyota. They must've pulled it out when building the house but isn't that kind of rock worth some money?

[@Sterling-Anthony-Bernard]

Wow the things you can learn about your home town 😀.

[@mitchellbrown1425]

it is crazy to see this about my city

[@empressthegoddess]

This is true because in west Baltimore, I found seashells in my backyard when I was younger

[@Widderic]

I studied film at Towson, thanks for this informative geological history nugget.

[@rivughosh4814]

Here we've a pair of almost spherical natural boulders of granite rock, one balancing on the top of other. The balancing of the rocks are so surprising that it is a famous landmark in West Bengal, India. I hope a member of you team will recognise that.

[@supratikroy9823]

I believe the rocks you are talking about are the eastern most extension of the Chota Nagpur plateau. The Chota Nagpur rocks record a long and complicated geological history of multiple phases of compression and extension related to formation and break up of supercontinents Nuna and Rodinia. Wonder which part(s) of the story is recorded in the “Mama Bhagne pahar”.

[@kennacrane899]

Wow! That's cool!

[@Jigganva]

Southeastern Va up to Richmond was once part of the Atlantic Ocean

[@jonjacob1962]

This is actually pretty cool. I've always been pretty fascinated with geology. I've known for a while now that the Appalachian mountains are some of, if not the oldest mountains, on earth's surface. But I didn't know this. I've lived like 15, 20 minutes south of Baltimore my whole life. Which is part of why this is so interesting to me.

[@me21464]

I love Towson University! I actually like Towson ❤❤❤

[@dianewallace6064]

Thank you for this content.

[@sethjforrest]

Great video! I'm a literature professor at another Baltimore university, with an abiding interest in geology since I read John McPhee during grad school. Where else throughout the city could we find rocks from the ophiolite? Herring Run? Do you ever need volunteers to help with field work?

[@ericjohnson4792]

I noticed years ago the area behind Hunt Valley mall. It’s some of the biggest rocks I’ve seen in the area. And they are noticeably old

[@canislatrans8285]

Oh that cliff. Do you know what kind of rock that is?

[@ericjohnson4792]

@@canislatrans8285 I have no idea but know it’s old

[@zizu4952]

Retired science teacher here. I noticed some striped rock used on my house in Baltimore County. All the houses in my development have this rock, which I thought was gneiss due to the stripes. I contacted the U of Baltimore geology department to find out more, and made contact with a gracious professor. She told me (based on my photos) that it was Setter's quartzite, very closely related to gneiss (hence the stripes). I was fascinated to know it was locally quarried, maybe even by the nearby Quarry Lake.

[@chesthoIe]

So cool, great channel!

[@mariaaytes8394]

Thank you very much for sharing with us!

[@KokowaSarunoKuniDesu]

Does the chromium bearing serpentinite at Soldier's Delight, nextt to Owing's Mill have any connection to this story? We used to visit Soldier's Delight and it's chromium mine in hikes with the NIH hiking club.

[@georgeguice2611]

Hi! Thanks for the interest. Absolutely!! The rocks at Soldier's Delight are a big part of the story, and are interpreted as representing the uppermost mantle that sat underneath the oceanic crust. Those rocks you hiked over really helped us understand that this is an ophiolite, as the geochemical signatures (including in those chromites you mention) are bang on what you would expect for oceanic mantle rocks. Thanks again for the interest!

[@canislatrans8285]

@@georgeguice2611 There is a large chromium vein that starts it's southern point in Jarrettsville and goes northward. I didn't know about the Owings Mills one.

[@StevenEvens7125]

This man risked his life to bring us this content. The least we can do is like and subscribe. 👍

[@SelectCircle]

Best comment. 8 D

[@Travmula1989]

How, no one was gonna bother him…

[@KmusikOne]

No he didn't lol

[@StevenEvens7125]

@@KmusikOne He barely made it out alive.

[@johncamp2567]

Nicely done and presented. (new subscriber, Virginia)

[@captcardor]

Fascinating! Great video!!!👍

[@bentationfunkiloglio]

Awesome video. I knew about the Baltimore mafic complex but only generally. I live in Catonsville, a mile west of Baltimore city limits. We have all kinds of amazing rocks here. Interestingly, I have a small stream in my back yard. At one end, you'll find big, chunky, igneous rocks including lots of gabbro. Well, it's pyroxene mixed with bits of clear quartz, so I think it's gabbro. At the other, you'll find clay, guessing weathered/dissolved feldspars, and gravels. Also, huge amounts of iron oxides, some sulfides (e.g., arsenopyrite, chalcopyrite), some manganese oxides (I believe), and other rocks that I'm not sure about (but take a great polish). If you look hard enough, you'll even find small amounts of gold and platinum group metals. Nothing economically interesting, but still fun.

[@Nomadicveggurl]

I am ecstatic to see this! I have looked at the terrain of Baltimore for decades. The rocks, the ridges on them, the branches, the slant of the trees suggest that it had to be below sea level. I searched for evidence that it was once under water to no avail. I hail from four generations of Baltimore city educators and administrators so I was always told that it was once water. Where can I find more information about this ocean?

[@kennacrane899]

Thank you! I learned a lot in this presentation. Well done! I've lived most of the last 60yrs on the west coast. I live about 15 N. Of Seattle now. I was introduced to plate tectonics around 78' or 80'. How the crust moves has always fascinated me. Earthquake wise. We are looking at " THE REALLY BIG ONE". 9.O or possibly bigger. Cascadia subduction zone or the Seattle fault scare me. Oh! Does your area have any glacial erratics?

[@jarredsdad]

Quite interesting. Thank you.

[@GhostManBrandonDDpre]

Brilliant video. I love it. Go Towson.

[@pjdjr]

@utd geoscience studio Super interesting! When I'm looking at a rock in Baltimore--rocks are everywhere here, as you know--how can I tell if it's one of the rocks from the Iapetus? Or are you saying that, generally speaking, pretty much all the rocks in Baltimore are from this ancient ocean?

[@Edmondson_Avenue]

Now time to find the gold, but I definitely can tell you about some rocks in my city lol 😆.

[@dariusbrodie9679]

this was dope very eye opening

[@mikejohnson-dl7vt]

I know right where that is! Bravo👏😃

[@MasterZedX]

Cool video!

[@Blaqsnake]

Keep waiting for someone to run behind him saying Omar coming😂

[@bahiyyahmoore4851]

😂😂😂

[@waynerogers8136]

That’s not even funny I’m from Baltimore city don’t believe everything y’all see the wire probably was 50 percent true if someone walks around doing the things he was doing he going to get gone quickly if u want to see something that’s real about Baltimore check out the show WE RUN THE CITY it’s about dirty police officers now that is Baltimore City

[@grAAny01]

😂😂😂😂

[@whopper1876]

😂😂😂

[@dlw8165]

Always one🤭🤭🤭 That was funny as isht.😂

[@matthewbittenbender9191]

A minor point of contention, as a Baltimore resident, I can safely tell you that druid Hill Park is not situated in Western Baltimore. That would be Leakun Park. Druid Hill is really North central.

[@Edmondson_Avenue]

No, it's definitely West/Northwest, central and northern is Baltimore and Charles Street all the way through Mount Vernon, Mt Washington, Hampton, Roland Park, Homewood, Homeland, Govans, Waverly, Hoes Heights, Guilford. Druid Hill Park sits directly north of Mondawmin and south of Park Heights and both communities are West, Mondawmin is in west Baltimore and Park Heights which is an extension of Druid Hill Park in Northwest Baltimore. Howard Street to Greenmount Ave is central/midtown Baltimore.

[@ivyd5485]

Druid Hill is in NW Baltimore

[@mobrown1198]

@@Edmondson_Avenueit is. It’s definitely “NorthWest” Baltimore… lower Northwest.

[@mobrown1198]

No sir. It is NorthWest Baltimore. I also am a longtime resident. Actually very close to Leakin Park. Druid Hill, is a large park.. and its borders extend towards Northwest Baltimore… Druid Park Drive, Reisterstown road. I also work for the Post Office (working all parts of the city) Large maps that have clearly defined borders… it’s definitely not North Central… Also. Just pull up Google maps…. you can easily see the borders … I’ve lived all over the city.. Lived on Eutaw place and Whitelock as a kid. Before the family moved to Edmondson Village, lived in Sandtown, Bolton Hill, Upper Northwest, went to Polytechnic… walked, rode bikes, walked Gwynn’s Falls far too many times ~ Druid Hill park is Northwest Baltimore! All day.

[@matthewbittenbender9191]

@@mobrown1198 the west boarder touches eastern most section of west Bmore. West Bmore is Mondomin and Leaking Park area and a bit away from it The east is on the JFK and Hopkins (east Bmore) right across. It's as central as you get.

[@dianeehlers3234]

I live in Houghton Michigan. This area has black basalt everywhere. Also exposed bedrock although much more in Marquette. Copper mining along the peninsula.

[@canislatrans8285]

I am wondering about the schist in northern Balto county. It is everywhere and dirt is very rocky. I had read somewhere it was 1 billion year old rock. Any relation to this ocean, or was it part of the land this sea was next to? I think it is what contains the radon in the area. I once found a rock of it with another rock overlaying like it had melted onto it. I wish I had taken that rock when I moved. The overlaying rock looked like a finer version of the schist. The schist is full of tiny mica flakes. I also have a piece of Jarrettsville stone from the chrome vein that is apparently an asbestos rock of some sort? It is not the loose flaking, but a firm, so safe to handle as long as I don't cut into it. I did keep that. Oh and the Elk Neck peninsula in Cecil county has some wild rocks. Red with crinoid fossils.

[@officialjunot]

Dude, I’m from West Baltimore I know exactly where you’re at right now. You are brave to be there 🤣

[@MrStateoftheCity]

Stop it. It ain't that bad. He's on the running/bike trail at druid hill.

[@officialjunot]

@@MrStateoftheCity I’ve lived in this city for 42 years. You stop it.

[@mikesuica8]

He shot this in Woodberry, dude. One of the quietest neighborhoods in the city.

[@MrStateoftheCity]

@@officialjunot living scared for 40+ years must be hard on the nervous system.

[@officialjunot]

@@MrStateoftheCity bruh…. This Democrat run City is trash. it’s dangerous and you know it. Stop trying to sit here and act like I’m saying something ridiculous

[@rossplendent]

I've lived here my whole life and never even knew about this. Pretty damn cool!

[@trutru9018]

Umm, isn't it water under everywhere that has land? ... and depending on how high above sea level the land is, some could be closer to the sea and some further. Am I wrong about this?

[@kohls_cash]

Do you think land is floating on the water??

[@mrright1068]

Very cool. And you had to cross an ocean to see it.

[@hellomimikitty]

Dude filmed the opening in Hamsterdam

[@jsilve1]

Hey! I'm in Baltimore!

[@swankmedia1508]

Now let’s talk about what’s under the loch raven res 😆

[@user-dn5vn9jq6h]

Maybe possible just like Savanah Ga used to be a city under water...America is an Island..Baltimore is on the Edge of the US Island 🫡

[@Antilleotheclown]

I’m a Light Rail Operator and I drive to Light Rail for MTA and I knew it was something stranger about the rocks that I passed by every day on the train. They did look volcanic, but I wasn’t sure now I have the facts

[@theenumba1]

Awesome video however what really impressed me is that you took a trip to West Baltimore. That in itself is an adventure. Coming from a Baltimorean myself!

[@CH-uq8pk]

I have a top secret path that leads to a different realm here in baltimore. Been looking to get a Interview for years

[@MattGatts]

My city! Dude was in Leakin Park, where almost 100 bodies have been found and who knows how many more, haven't been found..

[@Nomadicveggurl]

I discovered one in either 79 or 80. I was riding in the car and saw something bloody with a large abdomen near the rocks and water. Daddy Daddy something is there and it’s dead. No, baby girl that can’t be. I assured him that it was,but, he would not listen. As we were returning home there were police and tape in the same area. A 19 year old very pregnant woman had been murdered. I remember telling my grandmother over and over again that the fountain in Druid Hill Reservoir was no longer lit at night when we would drive by. Well, finally there was an inspection of it and woman’s body had been stuffed in it. That was around that 1980.

[@baltimoreluke]

why didn't subduction zone forces create gold and other heavy metal deposits on the East Coast like they did on the other side of the continent? or did they create deposits but those deposits have been weathered away?

[@jamesseaman2950]

There was a gold mine in Potomac, Maryland, near the Great Falls. Gold nuggets are still occasionally found in the Potomac River.

[@baltimoreluke]

@@jamesseaman2950 Yeah. There are other gold occurrences on the East Coast; mostly in NC, SC, and GA. I think there's even a commercial gold operation in South Carolina. But I'm wondering, why there is a higher level of gold mineralization on the West Coast compared to the East, if the same forces of subduction were involved. Maybe it's just because the subduction forces on the West Coast are just more geologically recent? And weathering has washed the East Coast gold out to sea?

[@officialjunot]

You’re in Leakin Park?? Brave soul…

[@reneharris4162]

😊❤ Interesting thanks 👍

[@DevineLoved]

we are surrounded by water in maryland i been knew this lol

[@charleschadwick8042]

and there was a rock shop in Havre de Grace. I showed him some drusy quartz I found where? Winters Run his eyes got huge that is extremely rare. now I realize there could be gold there

[@charleschadwick8042]

it was only from a single outcropping. below it I found my first real quartz crystals in matrix up to 6 cm long! again a rogue find he wanted me to take him there. His eagerness was offputting. this was 40 years ago i can still go right to it but I don't want it to be plundered by dummies so... put a pin in it and know there ARE mysteries in Harford County! cheers!

[@OldBrownDog]

380ma Concord granite synclines and anticlines with a couple roche moutontees thrown in for good measure (I think) 😂

[@MrJanaRobi]

marine clay in Maine .All over the state ,what is up with that ?

[@BradleyOsborn]

You should rename the remnant of the Iapetus Ocean the Poecean. 🤣

[@AnniePA1960]

I got that!! 😂😂😂

[@kenl4360]

Brave man to be in west Baltimore

[@malice_plays]

You can find a lot of very different rocks on that side of town to.

[@McQueen1217]

Interesting, I'm from West Baltimore

[@jballaviator]

Hey George! Could you explain to a layman like myself why we don't have a plateau behind the Appalachians, or the Atlas for that matter.

[@shawnwoodford-bey4044]

Thanks

[@tyronedavis1767]

When I was a kid, and playing in Bruce ct. Baltimore md. We were playing marbles and I dug into the ground and found green glass, we thought it was a seven up soda bottle. But it was to much of it the be a bottle. We try to move it but it was too much of it.

[@Blackstar-ub9lv]

He rode right through my neighborhood.

[@dentalnovember]

There are also a lot of crack rocks in Baltimore but those are more recently formed.

[@theseklownskrazyasfuq344]

😂😂😂😂😂😂😂

[@beefstew4698]

😂

[@I_Stand_With_RussiaZOV]

At the beginning of this video was old neighborhood I walked up and down on them sidewalks for many of yrs & the street behind him is Frederick VA the field was called the mill we used to play football on it every Saturday and Sunday I miss it but I don't miss it Let me make one correction it's Southwest Baltimore not West Baltimore