Images

Clearing the ice and snow to measure streamflow in South Fork Spread Creek. 

NWISMapper screenshot of Wyoming-Montana Stream Water-Quality Network Sites

We are using this piece of equipment to instantly measure stream temperature, pH, dissolved oxygen, and electrical conductivity. When you move the probe up and down in the water column, you can tell if the stream has stratification.

Winter fieldwork often requires a few extra steps in gaining access to collection sites. In this image, a USGS employee measures streamflow through holes drilled in the ice using an auger.

Using Doppler to peer under the ice and measure streamflow at New Fork River near Big Piney, Wyoming.

A USGS employee uses a motorized auger to drill a two-foot hole in the ice for the purpose of measuring streamflow on the Sweetwater River. This image shows the final stages of the drilling process for one hole out of the twelve drilled that day.

A USGS employee uses a motorized auger to drill a two-foot hole in the ice for the purpose of measuring streamflow on the Sweetwater River. This image shows the beginning stages of the drilling process for one hole out of the twelve drilled that day.

Location of Study Area (Includes Flaxville Aquifer and Lustre Oil Fields) and Sampling Sites From Previous USGS Studies

A USGS employee takes a wading measurement of streamflow on Leidy Creek at Togwotee Pass. Bear tracks on the fresh snow and seven grizzlie sightings were a good reminder to be bear-aware when taking measurements in this area.

Cross section wading measurement looking downstream at Bull Lake Creek above Bull Lake. 

Leidy Creek near Moran (13012465) streamgage

South Fork Spread Creek near Moran (13012475) streamgage

Hallowat Creek abv Kletomus Ck, nr Olney (12355342) streamgage

Drainage area contributing to Big Creek below Lookout Creek, near Apgar

Hallowat Creek abv Kletomus Ck, nr Olney (12355342) streamgage

Big Creek below Lookout Creek, near Apgar (site 12355347)

Finishing up water-quality sampling on Blacks Fork, the last field run of the summer for two of our interns.

Streamflow training at Blackrock Creek below Split Rock Creek near Moran, Wyoming. A new student intern learns how to measure streamflows upon arriving in Riverton just in time for high water.

Landscape view of Lake Koocanusa. Click here to view water quality data gathered at this lake.

Measuring streamflow in Little Snake River near Dixon, Wyoming. Streamflows were quite a bit lower than the 75-year average.

An ADCP is used to measure streamflow from a bridge near Kelly, Wyoming. Even with smoke making the view hazy, the Tetons never fail to make measuring streamflow in the Gros Ventre a treat.