BNSF Sand Train Led by Two Dash 9s

An eastbound BNSF unit freight train of one hundred two-bay covered hoppers passes Agency, Iowa on June 19, 2019. This looks like an empty sand train. It's pulled by a pair of Dash 9s.
Engines:
BNSF 5204 GE C44-9W
BNSF 5510 GE C44-9W

[@adamghimenti6988]

Wow a pair of dash 9s great catch

[@VisionsofEd]

Good catch

[@ETrain-mv4ck]

Nice catch

[@taslimchaudhry1431]

Super Video. 🇮🇳

[@bluemomo65]

Great! Liked 👍👍👍

[@TheMetGuy]

This is definitely an empty sand

[@Bob.W.]

Thanks. Always curious as to the origination and final destination of frac sand trains.