Unified Interior Regions

Region 9: Columbia-Pacific Northwest

Regions L2 Landing Page Tabs

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July 30, 2013

K1 West Transect – 2013

Permanent Site: K1 West Transect; Depth: 5.8 Meters (19 Feet) & 5.6 Meters (18.4 Feet); Distance from river mouth: 4.5 Kilometers (2.8 Miles) east; Pre/Post Dam Removal: 2 years post-dam removal; Lat/Long: 48.13592923,-123.51082988; Site Description: This is a shallow site. Sediment is a gravel/sand mixture. This video includes footage from surveys conducted both on 

July 30, 2013

K1 East Transect – 2013

Permanent Site: K1 East Transect; Depth: 6.2 Meters (20.4 Feet) & 6.6 Meters (21.5 Feet); Distance from river mouth: 4.5 Kilometers (2.8 Miles) east; Pre/Post Dam Removal: 2 years post-dam removal; Lat/Long: 48.13592923,-123.5101581; Site Description: This is a shallow site. Sediment is a gravel/sand mixture. This video includes footage from surveys conducted both on 

July 29, 2013

A2 East Transect – 2013

Permanent Site: A2 East Transect; Depth: 12.8 Meters (Feet 42); Distance from river mouth: Kilometers 1.8 (1.1 Miles); Pre/Post Dam Removal: 2 years post-dam removal; Lat/Long: 48.14130295, -123.58766124; Site Description: One of our deeper sites at over 40 feet. Sediment is primarily sand/sandy mud. Seaweeds are absent this year. Woody debris is seen on transect for the

July 23, 2013

H1 East Transect – 2014

Permanent Site: H1 East Transect; Depth: 5.5 Meters (Feet 17.8); Distance from river mouth: 2.4 Kilometers (1.5 Miles) east; Pre/Post Dam Removal: 3 years post-dam removal; Lat/Long: 48.1479177,-123.53472865; Site Description: This is a shallow site and one of the farthest removed from the effects of the sediment plume outside of the control sites. Substrate is still

Field Studies at Mount St. Helens...
July 19, 2013

Field Studies at Mount St. Helens

Center for the Study of Active Volcanoes (CSAV) students Javier Pacheco (Costa Rica) and Syegi Kunrat (Indonesia) participate in field studies at Mount St. Helens.

Image: Water-Quality Study in Historical Idaho Mining District
June 25, 2013

Water-Quality Study in Historical Idaho Mining District

USGS Hydrologic Technician Keith Hein carries water-quality samples past USGS streamgage 13311250 on the East Fork of the South Fork Salmon River. The samples were collected as part of a USGS water-quality study conducted in the historical Stibnite Mining District of central Idaho.

Teachers take a guided walk on the Hummocks Trail at Mount St. Hele...
June 25, 2013

Teachers take a guided walk on the Hummocks Trail at Mount St. Helens

Teachers take a guided walk on the Hummocks Trail, learning about the depositional features of the May 18, 1980 eruption.

Teachers learn about hummocks at Mount St. Helens workshop....
June 24, 2013

Teachers learn about hummocks at Mount St. Helens workshop.

Todd Cullings, with the Mount St. Helens National Volcanic Monument, leads teachers in activities they can do with students before hiking the Hummocks Trail.

three scientists connect PVC pipes in a common garden
June 6, 2013

Building precipitation manipulation plots in a common garden

The scientists are running PVC pipes that will irrigate plants in a common garden. A common garden is where plants are grown in a common environment to experimentally test different environmental effects. The irrigation system allows the scientists to simulate different precipitation patterns, testing the plants' responses to potential future climate scenarios.

Image: Streamgage 13317000, Salmon River at White Bird, Idaho
May 10, 2013

Streamgage 13317000, Salmon River at White Bird, Idaho

U.S. Geological Survey hydrographer Doug Ott inspects the gagehouse at streamgage stations 13317000, Salmon River at White Bird, Idaho, May 10, 2013. The flow at the gage was approximately 40,000 cubic feet per second at the time of this photo.

Scientists kneeling in water, taking samples
April 29, 2013

Collecting Benthic Invertebrates

USGS scientists, Steve Rubin and Karl Stenberg, collecting samples to determine the distribution of benthic invertebrates in the Skagit River delta during an extreme low-tide. Information on the distribution and abundance of invertebrates will help resource managers better understand how fish, such as Chinook salmon use the delta.

Maintenance at the September Lobe Monitoring Station at Mount St. H...
April 24, 2013

Maintenance at the Sep. Lobe Monitoring Station at Mount St. Helens.

The September Lobe monitoring station is part of the network of monitoring stations that detects and reports subtle changes in the volcanic vent area. At 2150 m (about 7100 ft) elevation, maintenance is performed during good weather to keep the station fully functional.