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1:250,000-scale Hydrologic Units of the United States
The Geographic Information Retrieval and Analysis System (GIRAS) was developed in the mid 70s to put into digital form a number of data layers which were of interest to the... -
Climate, Wildfire, and Erosion Data, Western US
These data were used to examine how post-fire sedimentation might change in western USA watersheds with future fire from the decade of 2001-10 through 2041-50. The data include... -
1:2,000,000-scale Hydrologic Units of the United States (SUPERSEDED)
This file contains hydrologic unit boundaries and codes for the conterminous United States along with Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands. It was revised for... -
MD iMAP: Maryland Watersheds - 8 Digit Watersheds
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This file (SWSUB8) is a statewide digital watershed file. It depicts the State with... -
Summer Steelhead Range [ds698]
October 2009 Version Data Content: This data set contains all CalWater 2.2.1 Planning Watersheds (PWS) where CDFW has documented summer run steelhead to be present during or... -
Summer Steelhead Range [ds698]
October 2009 Version Data Content: This data set contains all CalWater 2.2.1 Planning Watersheds (PWS) where CDFW has documented summer run steelhead to be present during or... -
Summer Steelhead Range [ds698]
October 2009 Version Data Content: This data set contains all CalWater 2.2.1 Planning Watersheds (PWS) where CDFW has documented summer run steelhead to be present during or... -
Coho Range [ds534]
June 2016 VersionData Content:This data set contains all CalWater 2.2.1 Planning Watersheds (PWS) where CDFW has documented coho salmon to be present during or after 1990. It... -
USGS Streamgage NHDPlus Version 1 Basins 2011
This dataset represents 19,031 basin boundaries and their streamgage locations for the U.S. Geological Survey's (USGS) active and historical streamgages from the published... -
Urban Creek Watersheds
A polygon feature class showing urban creek watersheds in King County. It also provides information on its alternative name, area, and absolute location. -
1:2,000,000-scale Hydrologic Units of the United States (OLDER)
This data set has been superseded by huc2m. This file contains hydrologic unit boundaries and codes for the conterminous United States along with Alaska, Hawaii, Puerto Rico and... -
Summer Steelhead Range [ds698]
October 2009 Version Data Content: This data set contains all CalWater 2.2.1 Planning Watersheds (PWS) where CDFW has documented summer run steelhead to be present during or... -
USGS Streamgage NHDPlus Version 1 Basins 2011
This dataset represents 19,031 basin boundaries and their streamgage locations for the U.S. Geological Survey's (USGS) active and historical streamgages from the published... -
Winter Steelhead Range [ds699]
June 2012 Version Data Content: This data set contains all CalWater 2.2.1 Planning Watersheds (PWS) where CDFW has documented winter run steelhead to be present during or after... -
Select Attributes for NHDPlus Version 2.1 Reach Catchments and Modified...
This metadata record describes a series of data sets of natural and anthropogenic landscape features linked to NHDPlus Version 2.1’s (NHDPlusV2) approximately 2.7 million stream... -
1:2,000,000-scale Hydrologic Units of the United States (OLDER)
This data set has been superseded by huc2m. This file contains hydrologic unit boundaries and codes for the conterminous United States along with Alaska, Hawaii, Puerto Rico and... -
Winter Steelhead Range [ds699]
June 2012 Version Data Content: This data set contains all CalWater 2.2.1 Planning Watersheds (PWS) where CDFW has documented winter run steelhead to be present during or after... -
Summer Steelhead Range [ds698]
October 2009 Version Data Content: This data set contains all CalWater 2.2.1 Planning Watersheds (PWS) where CDFW has documented summer run steelhead to be present during or... -
MD iMAP: Maryland Watersheds - Chesapeake Bay Watershed
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Chesapeake Bay Watershed Outline. Defines extent of the Chesapeake Bay watershed... -
Climate, Wildfire, and Erosion Data, Western US
These data were used to examine how post-fire sedimentation might change in western USA watersheds with future fire from the decade of 2001-10 through 2041-50. The data include...