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NHDArea
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface... -
NHDWaterbody
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface... -
NHDFlowline
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface... -
Cook Inlet Basin Study Unit – Wetlands
nawqa_wet is a polygon coverage of the wetlands in the Cook Inlet Basin National Water-Quality Assessment (NAWQA) study unit. The coverage was created from a statewide coverage... -
Cook Inlet Basin Study Unit – Precipitation
nawqa_precip is a line and polygon coverage of the precipitation values in the Cook Inlet Basin National Water-Quality Assessment (NAWQA) study area in southcentral Alaska. This... -
Cook Inlet Basin Study Unit – Glaciers
nawqa_glac1 is a polygon coverage of glaciers in the Cook Inlet National Water-Quality Assessment (NAWQA) study unit. The Cook Inlet NAWQA is located in southcentral Alaska and... -
Cook Inlet Basin Study Unit – Gaging Stations
nawqa_sta is a point coverage of USGS streamflow-gaging stations in the Cook Inlet National Water-Quality Assessment (NAWQA) study unit. Only stations with 10 or more years of... -
Cook Inlet Basin Study Unit – Hydrologic Unit Boundaries
nawqa_huc is a polygon coverage of hydrologic unit boundaries within the Cook Inlet Basin National Water-Quality Assessment (NAWQA) study area in southcentral Alaska. A... -
Cook Inlet Basin Study Unit – Streams and Rivers
nawqa_strm is a line coverage of the streams and rivers in the Cook Inlet Basin National Water-Quality Asessment (NAWQA) study unit. The purpose of this coverage is (1) to... -
Cook Inlet Basin Study Unit – Lakes
nawqa_lakes is a polygon coverage of lakes greater than 20 acres that are located in the Cook Inlet National Water-Quality Assessment (NAWQA) study unit. The Cook Inlet Basin is... -
Cook Inlet Basin Study Unit – Permafrost
nawqa_perm is a polygon coverage of the permafrost regions in the Cook Inlet National Water-Quality Assessment (NAWQA) study unit. The Cook Inlet Basin is located in... -
Cook Inlet Basin Study Unit – Roads
nawqa_roads is a line coverage of the roads in the Cook Inlet Basin National Water-Quality Assessment (NAWQA) study unit. A statewide coverage of the road system was obtained... -
Cook Inlet Basin Study Unit – Towns
nawqa_towns is a point coverage of the towns and cities located in the Cook Inlet Basin National Water Quality Assessment (NAWQA) study unit in southcentral Alaska. The purpose... -
Cook Inlet Basin Study Unit – Physiography
nawqa_phys is a polygon coverage of the physiographic divisions within the Cook Inlet Basin, National Water-Quality Assessment (NAWQA) study unit. The coverage was created from... -
Cook Inlet Basin Study Unit – Ecoregions
nawqa_ecoreg is a polygon coverage of the ecoregions contained in the Cook Inlet National Water-Quality Assessment (NAWQA) study unit. This coverage was developed by clipping a... -
Epidemic of Beak Deformities (Avian Keratin Disorder) among Wild Bird Populat...
Since January 1998, about 2000 birds of 30 different species have been reported in Alaska with grossly deformed beaks. Most sightings have been concentrated in south-central...
