Water samples/probes in streambed
Person with sampling equipment near streambed
Person with sampling equipment near streambed and control structure
Man adjusting control structure on stream
Water samples/probes in streambed
Pole markers in streambed
Five people with equipment near control structure
Camp with equipment near lake edge
Sampling equipment near lake edge
Person with sampling equipment near streambed
Control structure on stream
Sampling equipment near stream
Control structure on stream
Control structure on stream
Two people with sampling equipment near lake edge
Aerial view of ice-covered lake
Person standing on control structure with tent