Looking upstream (east) at USGS streamgage 08227510 North Crestone Creek at Baca NWR near Crestone, CO; non-contact radar suspended above the creek with USGS hydrologist servicing the streamgage on the bank on the left.
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08227510 North Crestone Creek at Baca NWR near Crestone, CO - 3
Looking upstream (east) at USGS streamgage 08227510 North Crestone Creek at Baca NWR near Crestone, CO; non-contact radar suspended above the creek with USGS hydrologist servicing the streamgage on the bank on the left.
Sampling of a Production Well in the Upper Black Squirrel Creek Designated Ground Water Basin in Colorado
linkSampling of a production well from an outdoor spigot in the Upper Black Squirrel Creek Designated Ground Water Basin in Colorado.
Sampling of a Production Well in the Upper Black Squirrel Creek Designated Ground Water Basin in Colorado
linkSampling of a production well from an outdoor spigot in the Upper Black Squirrel Creek Designated Ground Water Basin in Colorado.
Observation Well with Grundfos Redi-Flo 2 Pump in Upper Black Squirrel Creek Designated Ground Water Basin in Colorado
linkImage of observation well with Grundfos Redi-Flo 2 pump at Upper Black Squirrel Creek Designated Ground Water Basin location.
Observation Well with Grundfos Redi-Flo 2 Pump in Upper Black Squirrel Creek Designated Ground Water Basin in Colorado
linkImage of observation well with Grundfos Redi-Flo 2 pump at Upper Black Squirrel Creek Designated Ground Water Basin location.
Sample Processing Equipment at Upper Black Squirrel Creek Designated Ground Water Basin Study
Image of sample processing equipment in truck at Upper Black Squirrel Creek Designated Ground Water Basin study location.
Image of sample processing equipment in truck at Upper Black Squirrel Creek Designated Ground Water Basin study location.
Iron Spring outflow at Fountain Creek near Manitou Springs, Colorado
Springs discharging from the artesian aquifer are commonly supersaturated with minerals. In this photo at Iron Spring a small mound of iron hydroxides is forming below where the spring outflows to Fountain Creek.
Springs discharging from the artesian aquifer are commonly supersaturated with minerals. In this photo at Iron Spring a small mound of iron hydroxides is forming below where the spring outflows to Fountain Creek.
Captain Jack Superfund Site, Boulder County, Colorado
The Captain Jack site is located in mountainous terrain northwest of Boulder, Colorado. Here the terrain is visible behind an old train track leading into a mine adit.
Location: Captain Jack Superfund site, Boulder County, Colorado
The Captain Jack site is located in mountainous terrain northwest of Boulder, Colorado. Here the terrain is visible behind an old train track leading into a mine adit.
Location: Captain Jack Superfund site, Boulder County, Colorado
Fountain Creek near Manitou Spring, Colorado
Image of a streamflow measurement site on Fountain Creek near Manitou Springs, Colorado.
Image of a streamflow measurement site on Fountain Creek near Manitou Springs, Colorado.
Calcite Precipitation at Captain Jack Superfund Site, Boulder County, CO
Interactions between water and minerals in the subsurface (including efflorescent sulfate salts and calcite such as this sample from the Big Five adit) are a primary control on water quality in mining environments. Research is evaluating the importance of these minerals in generating acid mine drainage.
Interactions between water and minerals in the subsurface (including efflorescent sulfate salts and calcite such as this sample from the Big Five adit) are a primary control on water quality in mining environments. Research is evaluating the importance of these minerals in generating acid mine drainage.
GNSS Surveying Equipment near Non-Potable Reservoir 1
Real-Time Kinematic Global Navigation Satellite Systems (GNSS) surveying equipment near Non-Potable Reservoir 1
Real-Time Kinematic Global Navigation Satellite Systems (GNSS) surveying equipment near Non-Potable Reservoir 1
Ice Lake at dusk, looking north from the main outlet structure
Ice Lake at dusk, looking north from the main outlet structure
Ice Lake at dusk, looking north from the main outlet structure
Bathymetric surveying equipment at Non-Potable Reservoir 2
Research vessel with bathymetric surveying equipment Non-Potable Reservoir 2
Research vessel with bathymetric surveying equipment Non-Potable Reservoir 2
Research vessel on Kettle Lake 3
Research vessel with bathymetric surveying equipment andU.S. Geological Survey hydrologist on Kettle Lake 3.
Research vessel with bathymetric surveying equipment andU.S. Geological Survey hydrologist on Kettle Lake 3.
Looking southwest from the north side of Kettle Lake 2
Looking southwest from the north side of Kettle Lake 2
Looking southwest from the north side of Kettle Lake 2
North Taylor Creek, Wet Mountain Valley, Colorado
Image of North Taylor Creek in Wet Mountain Valley, Colorado prior to completion of a surface-water discharge measurement.
Image of North Taylor Creek in Wet Mountain Valley, Colorado prior to completion of a surface-water discharge measurement.
Aquifer testing in Wet Mountain Valley, Colorado
Photo of equipment for slug test at aquifer testing site in Colorado. The Rocky Mountains are visible in the background.
Photo of equipment for slug test at aquifer testing site in Colorado. The Rocky Mountains are visible in the background.
Illinois Gulch near Breckenridge, Colorado
Two synoptic sampling campaigns were conducted near Breckenridge, Colorado, to quantify metal loading to Illinois Gulch, a tributary of the Blue River.
Two synoptic sampling campaigns were conducted near Breckenridge, Colorado, to quantify metal loading to Illinois Gulch, a tributary of the Blue River.
NAAMDRC - A microscopic picture of a Dytiscus insect from the AXL lab
A microscopic picture of a Dytiscus insect from the AXL lab at the Fort Collins Science Center.
A microscopic picture of a Dytiscus insect from the AXL lab at the Fort Collins Science Center.
USGS personnel collecting bathymetry data.
USGS research vessel with Teledyne Odom Hydrographic ES3PT–M integrated multibeam echo sounder and motion sensor submerged on the port side, and Trimble SPS461 GPS receivers mounted on each side of vessel.
USGS research vessel with Teledyne Odom Hydrographic ES3PT–M integrated multibeam echo sounder and motion sensor submerged on the port side, and Trimble SPS461 GPS receivers mounted on each side of vessel.
CWSC Bathymetry at Clear Creek Reservoir
USGS research vessel collecting bathymetry data at Clear Creek Reservoir.
USGS research vessel collecting bathymetry data at Clear Creek Reservoir.
Sediment Sampling at A72
Animas River downstream from Silverton, Colorado, showing right and left bank areas where streambed sediment sample was collected near USGS stream gage at site A72 (USGS site ID 09359020). Latitude 37.789964, Longitude -107.667394.
Animas River downstream from Silverton, Colorado, showing right and left bank areas where streambed sediment sample was collected near USGS stream gage at site A72 (USGS site ID 09359020). Latitude 37.789964, Longitude -107.667394.
Baker's Bridge Sediment Sample
Animas River samples at Baker's Bridge/Tall Timber Resort (USGS site ID 09359500). Closeup view showing location of streambed sediment sample collection from right side of left channel where river splits into two channels upstream from the Riverside Resort. Latitude 37.457297, Longitude -107.799803.
Animas River samples at Baker's Bridge/Tall Timber Resort (USGS site ID 09359500). Closeup view showing location of streambed sediment sample collection from right side of left channel where river splits into two channels upstream from the Riverside Resort. Latitude 37.457297, Longitude -107.799803.