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Whooping cranes (Grus americana) of the Aransas-Wood Buffalo population migrate twice each year through the Great Plains in North America. Recovery activities for this endangered species include providing adequate places to stop and rest during migration, which are generally referred to as stopover sites. To assist in recovery efforts, initial estimates of stopover site use intensity are presented, which provide opportunity to identify areas across the migration range used more intensively by whooping cranes. We used location data acquired from 58 unique individuals fitted with platform transmitting terminals that collected global position system locations. Radio-tagged birds provided 2,158 stopover sites over 10...
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The Middle Fork Willamette River basin encompasses 3,548 square kilometers of western Oregon and drains to the mainstem Willamette River. Fall Creek basin encompasses 653 square kilometers and drains to the Middle Fork Willamette River. In cooperation with the U.S. Army Corps of Engineers, the U.S. Geological Survey evaluated geomorphic responses of downstream river corridors to annual drawdowns to streambed at Fall Creek Lake. This study of geomorphic change is focused on the major alluvial channel segments downstream of the U.S. Army Corps of Engineers’ dams on Fall Creek and the Middle Fork Willamette River, as well as the 736 hectare Fall Creek Lake. Reservoir erosion during streambed drawdown results in sediment...
The U.S. Geological Survey (USGS), in cooperation with the Puerto Rico Environmental Quality Board, has compiled a series of geospatial datasets for Puerto Rico to be implemented into the USGS StreamStats application (https://streamstats.usgs.gov/ss/). These geospatial datasets, along with basin characteristics datasets for Puerto Rico published as a separate USGS data release (https://doi.org/10.5066/P9HK9SSQ), were used to delineate watersheds and develop the peak-flow and low-flow regression equations used by StreamStats. The geospatial dataset described herein are the sink watershed grid rasters at a 10-m resolution. A value is assigned to pixels in each sink watershed and the count of cells that drain to that...
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One of the largest hydraulic mines (1.6 km2) is located in California’s Sierra Nevada within the Humbug Creek watershed and Malakoff Diggins State Historic Park (MDSHP). MDSHP’s denuded and dissected landscape is composed of weathered Eocene auriferous sediments susceptible to chronic rill and gully erosion whereas block failures and debris flows occur in more cohesive terrain. This data release includes a 1992 digital surface model (DSM), 1992 orthophoto mosaic, masked orthophoto of the study area, 1992 ground cover classification, and 1992 pruned DSM with the vegetation bias removed. Stereo-photogrammetry was used to create a 1992 digital surface model (DSM) and orthophoto mosaic from archived aerial photographs....


map background search result map search result map Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P4 from 1977 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T2 from 1983 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T6 from 1986 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P1 from 18 July 1990 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T6 from 1991 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T9 from 2000 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P11 from 2001 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P7 from 2002 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T8 from 2002 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T5 from 2003 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P1 from 2005 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P11 from 2007 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands P6 and P7 from 2011 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands T4, T5, T6, and T7 from 2012 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands T8 and T9 from 2012 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands P8 and T1 from 2015 1992 digital surface model Malakoff Diggins State Historic Park, California Sink watershed rasters for Puerto Rico StreamStats High-resolution digital elevation model of Fall Creek Lake, Oregon, acquired during annual drawdown to streambed November 8, 2016 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T6 from 1991 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T6 from 1986 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T2 from 1983 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T8 from 2002 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P4 from 1977 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T9 from 2000 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T5 from 2003 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P1 from 18 July 1990 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands T4, T5, T6, and T7 from 2012 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands P8 and T1 from 2015 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P1 from 2005 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P7 from 2002 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands P6 and P7 from 2011 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P11 from 2001 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands T8 and T9 from 2012 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P11 from 2007 1992 digital surface model Malakoff Diggins State Historic Park, California High-resolution digital elevation model of Fall Creek Lake, Oregon, acquired during annual drawdown to streambed November 8, 2016 Sink watershed rasters for Puerto Rico StreamStats