Permanent Control Site: GP2 East Transect; Depth: 13.2 Meters (43.2 Feet); Distance from river mouth: 18.8 Kilometers (11.7 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.12781102,-123.31645664; Site Description: This site was established as the eastern control. Substrate is mainly a gravel sand mixture.
Videos
Explore a diverse collection of engaging videos showcasing the latest research, discoveries, and educational content from the U.S. Geological Survey. Dive into the fascinating world of geology, hydrology, ecology, and natural hazards as we bring science to life. Stay informed and inspired by our visual storytelling that highlights the vital work of USGS scientists and their impact on the planet.
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GP2 East Transect – 2015
Permanent Control Site: GP2 East Transect; Depth: 13.2 Meters (43.2 Feet); Distance from river mouth: 18.8 Kilometers (11.7 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.12781102,-123.31645664; Site Description: This site was established as the eastern control. Substrate is mainly a gravel sand mixture.
GP2 West Transect – 2016
Permanent Control Site: GP2 West Transect; Depth: 12.9 Meters (42.3 Feet); Distance from river mouth: 18.8 Kilometers (11.6 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.12781102,-123.31712832; Site Description: This site was established as the eastern control. Substrate is mainly a gravel/sand/cobble mixture surrounding boulders.
Permanent Control Site: GP2 West Transect; Depth: 12.9 Meters (42.3 Feet); Distance from river mouth: 18.8 Kilometers (11.6 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.12781102,-123.31712832; Site Description: This site was established as the eastern control. Substrate is mainly a gravel/sand/cobble mixture surrounding boulders.
D2 East Transect – 2015
Permanent Site: D2 East Transect; Depth: 12.1 Meters (39.8 Feet); Distance from river mouth: 0.3 Kilometers (0.2 Miles); Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15233001,-123.56829403; Site Description: This site is right off the mouth of the river. Substrate is mainly gravel.
Permanent Site: D2 East Transect; Depth: 12.1 Meters (39.8 Feet); Distance from river mouth: 0.3 Kilometers (0.2 Miles); Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15233001,-123.56829403; Site Description: This site is right off the mouth of the river. Substrate is mainly gravel.
D2 West Transect – 2015
Permanent Site: D2 West Transect; Depth: 12.7 Meters (41.7 Feet); Distance from river mouth: 0.3 Kilometers (0.2 Miles); Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15233001,-123.56896603; Site Description: This site is right off the mouth of the river. Substrate is mainly gravel and cobble.
Permanent Site: D2 West Transect; Depth: 12.7 Meters (41.7 Feet); Distance from river mouth: 0.3 Kilometers (0.2 Miles); Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15233001,-123.56896603; Site Description: This site is right off the mouth of the river. Substrate is mainly gravel and cobble.
Hydrography Webinar Series - Session 3
USGS Hydrography Webinar series that shares success stories from users, provide information on NHD and other related products, and provide a forum for users.
USGS Hydrography Webinar series that shares success stories from users, provide information on NHD and other related products, and provide a forum for users.
PubTalk 7/2015 — The Giant Cascadia Earthquake of January 26, 1700
PubTalk 7/2015 — The Giant Cascadia Earthquake of January 26, 1700Detective Stories from North America and Japan
by Brian Atwater, USGS Seattle
PubTalk 7/2015 — The Giant Cascadia Earthquake of January 26, 1700
PubTalk 7/2015 — The Giant Cascadia Earthquake of January 26, 1700Detective Stories from North America and Japan
by Brian Atwater, USGS Seattle
J1 East Transect – 2015
Permanent Site: J1 East Transect; Depth: 9.4 Meters (30.8 Feet); Distance from river mouth: 6.7 Kilometers (4.1 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.13607725,-123.47935008; Site Description: This site is medium depth. Substrates is mainly a gravel/sand mixture. Seaweed density has increased.
Permanent Site: J1 East Transect; Depth: 9.4 Meters (30.8 Feet); Distance from river mouth: 6.7 Kilometers (4.1 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.13607725,-123.47935008; Site Description: This site is medium depth. Substrates is mainly a gravel/sand mixture. Seaweed density has increased.
J1 West Transect – 2015
Permanent Site: J1 West Transect; Depth: 9.2 Meters (30.2 Feet); Distance from river mouth: 6.6 Kilometers (4.1 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.13607725,-123.48002186; Site Description: Visibility was bad on this date and video is of poor quality. This site is medium depth.
Permanent Site: J1 West Transect; Depth: 9.2 Meters (30.2 Feet); Distance from river mouth: 6.6 Kilometers (4.1 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.13607725,-123.48002186; Site Description: Visibility was bad on this date and video is of poor quality. This site is medium depth.
F1 East Transect – 2015 - YouTube
Permanent Site: F1 East Transect; Depth: 6.3 Meters (20.7 Feet); Distance from river mouth: 1.3 Kilometers (0.8 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15292999, -123.55011402; Site Description: This is a shallow site. Substrate is still mainly sand but some cobble is present (2:15, 2:27 seconds).
Permanent Site: F1 East Transect; Depth: 6.3 Meters (20.7 Feet); Distance from river mouth: 1.3 Kilometers (0.8 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15292999, -123.55011402; Site Description: This is a shallow site. Substrate is still mainly sand but some cobble is present (2:15, 2:27 seconds).
F1 West Transect – 2015
Permanent Site: F1 West Transect; Depth: 6.6 Meters (21.7 Feet); Distance from river mouth: 1.3 Kilometers (0.8 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15292999, -123.55078602; Site Description: The video is of poor quality. This is a shallow site. Substrate is still mainly sand with an occasional cobble.
Permanent Site: F1 West Transect; Depth: 6.6 Meters (21.7 Feet); Distance from river mouth: 1.3 Kilometers (0.8 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15292999, -123.55078602; Site Description: The video is of poor quality. This is a shallow site. Substrate is still mainly sand with an occasional cobble.
H2 East Transect – 2015
Permanent Site: H2 East Transect; Depth: 8.1 Meters (26.7 Feet); Distance from river mouth: 2.6 Kilometers (1.6 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15008216,-123.53210661; Site Description: This site is medium to shallow depth.
Permanent Site: H2 East Transect; Depth: 8.1 Meters (26.7 Feet); Distance from river mouth: 2.6 Kilometers (1.6 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15008216,-123.53210661; Site Description: This site is medium to shallow depth.
H2 West Transect – 2015
Permanent Site: H2 West Transect; Depth: 7.7 Meters (25.2 Feet); Distance from river mouth: 2.6 Kilometers (1.6 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15008216,-123.53277857; Site Description: This site is medium to shallow depth.
Permanent Site: H2 West Transect; Depth: 7.7 Meters (25.2 Feet); Distance from river mouth: 2.6 Kilometers (1.6 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15008216,-123.53277857; Site Description: This site is medium to shallow depth.
C1 East Transect – 2015
Permanent Site: C1 East Transect; Depth: Meters (Feet); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.14525225,-123.57294101; Site Description: Substrate is entirely sand. All seaweeds are absent. Woody debris is present (1:36, 2:20 seconds).
Permanent Site: C1 East Transect; Depth: Meters (Feet); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.14525225,-123.57294101; Site Description: Substrate is entirely sand. All seaweeds are absent. Woody debris is present (1:36, 2:20 seconds).
C1 West Transect – 2015
Permanent Site: C1 West Transect; Depth: Meters (Feet); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.14525225,-123.57361291; Site Description: Substrate is entirely sand. All seaweeds are absent. Woody debris is present (0:06 seconds).
Permanent Site: C1 West Transect; Depth: Meters (Feet); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.14525225,-123.57361291; Site Description: Substrate is entirely sand. All seaweeds are absent. Woody debris is present (0:06 seconds).
E2 East Transect – 2015
Permanent Site: E2 East Transect; Depth: 14.8 Meters (48.5 Feet); Distance from river mouth: 0.9 Kilometers (0.5 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15653002,-123.56130401; Site Description: This is one of our deeper sites. Substrate is mainly gravel/cobble with an occasional boulder.
Permanent Site: E2 East Transect; Depth: 14.8 Meters (48.5 Feet); Distance from river mouth: 0.9 Kilometers (0.5 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15653002,-123.56130401; Site Description: This is one of our deeper sites. Substrate is mainly gravel/cobble with an occasional boulder.
E2 West Transect – 2015
Permanent Site: E2 West Transect; Depth: 14.8 Meters (48.7 Feet); Distance from river mouth: 0.9 Kilometers (0.5 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15653002, -123.56197605; Site Description: This is one of our deeper sites. Substrate is mainly gravel/cobble with scattered boulders.
Permanent Site: E2 West Transect; Depth: 14.8 Meters (48.7 Feet); Distance from river mouth: 0.9 Kilometers (0.5 Miles) east; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.15653002, -123.56197605; Site Description: This is one of our deeper sites. Substrate is mainly gravel/cobble with scattered boulders.
PRMS Parameter Calibration
Describes how to calibrate the USGS Precipitation Runoff Modeling System (PRMS) using the LUCA software package.
Describes how to calibrate the USGS Precipitation Runoff Modeling System (PRMS) using the LUCA software package.
Post-wildfire Flood and Debris Flow: 2014 Silverado Fire
Post-wildfire Flood and Debris Flow: 2014 Silverado FireIn 2014, the Silverado Fire burned approximately 4 km^2 in Orange County, California. After the fire, the USGS installed an automated rain-triggered camera to monitor post-wildfire flooding and debris flow at the outlet of a small 0.6 km^2 basin within the burn area.
Post-wildfire Flood and Debris Flow: 2014 Silverado Fire
Post-wildfire Flood and Debris Flow: 2014 Silverado FireIn 2014, the Silverado Fire burned approximately 4 km^2 in Orange County, California. After the fire, the USGS installed an automated rain-triggered camera to monitor post-wildfire flooding and debris flow at the outlet of a small 0.6 km^2 basin within the burn area.
Accessing USGS Historical Maps through TopoView
Lesson 9b: Accessing USGS Historical Maps through TopoView - This video demonstrates the basic function of TopoView, a USGS product allowing access to USGS historical topographic maps for no charge.
Lesson 9b: Accessing USGS Historical Maps through TopoView - This video demonstrates the basic function of TopoView, a USGS product allowing access to USGS historical topographic maps for no charge.
Drano Lake Sockeye Salmon
Adult Sockeye Salmon in Drano Lake, WA on July 15th and 16th 2015.
Adult Sockeye Salmon in Drano Lake, WA on July 15th and 16th 2015.
PRMS Simulation of Depression Storage
Instructions for simulating depression storage when using the USGS Precipitation Runoff Modeling System (PRMS).
Instructions for simulating depression storage when using the USGS Precipitation Runoff Modeling System (PRMS).