Two men are taking samples of something from a river or stream.
Men sifting through dirt and water next to a river in the name of research.
Two men in a forested area sit near a river bank.
Two guys kneel at a waters edge as they pan for gold.
TWO MEN ARE AT A STREAM IN TEXAS PREPARING TO TAKE WATER SAMPLES.
A man is seated by river while speaking and there is a machine making noises.
A person lays a tool onto the grass, another person then lays in the water.
A man in a hat is using a tool to catch a animal in a river.
Two men are beside a small stream in Texas, preparing to do something.
Guys one with green top and one with stripy blue top are fishing by the river side