Images

An early streamgage is used to measure water levels on San Saba River. USGS crews would visit this equipment to collect water level readings.

Pedernales River at Hamilton Pool Crossing after September 1952 flood. Trees destroyed by flood of September 11, 1952.  Discharge of Pedernales River near Spicewood, TX (USGS station 08154000) was 452,000 cfs.

The Bois de Sioux river channel near White Rock, SD.

The Little Missouri River at Medora, North Dakota. Top photo taken by a USGS personnel in March of 1972, while the Little Missouri River was flooding the camp sites at Medora, ND. The bottom photo was taken by USGS Colton Rupp on May 24, 2011, with a discharge of 32,000 cfs and a gage height of 19.42 feet.

Stream in Great Smoky Mountains National Park.

Stream near Pocosin weather station site, Shenandoah National Park.

The ochre sea star is a common starfish found along the shores of Puget Sound.  This intertidal dweller feeds primarily on mussels and snails, and may live as long as twenty years.

I took this picture while setting up a study of this invasive spp.  Of snail. 

As part of an international collaboration, the USGS assessed water availability in Kabul, Afghanistan. The report can be found online.

Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.

Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.

Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.

Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.

USGS gage house located at Devils Lake near Devils Lake, ND has recorded 100 years of data.

Diatoms are algae that reflect the biotic condition of streams, lakes and estuaries. Diatoms are important indicator organisms because they are sensitive to natural and human impacts, and monitoring their condition provides information about ecosystem health. A scanning electron micrograph (SEM) shows one valve of an unusual species within the genus Aneumastus.

Viewing the Cannonball River at Breien, ND from the Highway 6 bridge looking southeast.

Cannonball River at Breien, ND looking west.

Souris River above Minot, North Dakota.

Deploying a datalogger in the middle of Harney Lake.

Spring Rain at Hart Mountain.

Cattle Ranch with typically 100 head of cattle currently flooded from the spring melt of higher than average snow accumulation.