Images

Streamgage 06412810, Cleghorn Springs at Rapid City, SD.

Corbicula sampling in the Bonneville Pool, Columbia River.

Lake Martin, a popular spot for bird-watching, fishing and boating, is part of The Nature Conservancy’s Cypress Island Preserve. The site, located in St. Martin Parish, Louisiana, is a beautiful example of a bald cypress swamp. The first case of Snake Fungal Disease in a free-ranging wild snake in Louisiana was documented by a USGS scientist from there in 2015.

Lake Martin, a popular spot for bird-watching, fishing and boating, is part of The Nature Conservancy’s Cypress Island Preserve. The site, located in St. Martin Parish, Louisiana, is a beautiful example of a bald cypress swamp. The first case of Snake Fungal Disease in a free-ranging wild snake in Louisiana was documented by a USGS scientist from there in 2015.

Scientist from the USGS collects a gas sample into an evacuated/vacuum flas from a steam vent near the Shoshone Geyser Basin.

Firefighters surrounded by clouds of smoke and dust of the World Trade Center after the terrorist attacks of September 11, 2001. Photographer's Mate 2nd Class Jim Watson, U.S. Navy.

USGS Hydrologist Heidi Hoppe Preserving a water sample at Great Egg Harbor River at Weymouth, New Jersey

USGS scientist collecting samples at Crater Lake, Oregon.

first order stream in the Catskill Mountains

Collapse of Kīlauea's caldera floor has exposed South Sulphur Bank, prominent in the mid-19th century but covered as lava flows filled the caldera. The flat top of the white deposit shows how high the caldera fill reached. As the caldera floor dropped in mid-June 2018, South Sulphur Bank was again exposed.

At 68 hours post fertilization, this laboratory produced sturgeon egg is about ready to hatch.

The Belle Fourche River is a major drainage for the northern Black Hills of South Dakota.

Redwater River near Belle Fourche, SD.

USGS regional research drill rig constructing sites near the south bank of the Truckee River just downstream of USGS 10350000 Truckee River at Vista. The wells were constructed to investigate surface water groundwater interaction.

The Lime Creek observation well in Rapid City, SD, is a flowing well where the shut-in pressure is measured. The well is completed in the Madison aquifer and is 1,391-feet deep.

The Limestone Plateau along the South Dakota-Wyoming border west of Custer, SD. Numerous headwater springs occur along the eastern edge of the Limestone Plateau. Large outcrops of the Madison Limestone and Minnelusa Formation form the plateau.

Streamgage on Grace Coolidge Creek near Game Lodge near Custer, SD, 06404998.

Photograph taken in 2001 of an area burned by the Jasper Fire that started on August 24, 2000, just west of Jewel Cave in the southern Black Hills of South Dakota. A total of about 84,000 acres was burned by the Jasper Fire.

Batavia Kill at Red Falls, Greene County, NY

Bear Butte Creek in northern Black Hills near Deadwood, SD.

Bear Butte Creek in northern Black Hills near Deadwood, SD.