6 datasets found for "Topographic Quadrangle Index"
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Federal
EnviroAtlas - Watershed Index Online Hydrologically Connected Zone Mask for the Conterminous United States
U.S. Environmental Protection Agency —
The Hydrologically Connected Zone (HCZ) Mask was determined using grid analysis to combine surface water features in the United States from three datasets: First, the... -
Federal
EnviroAtlas - Percent Potential Wetland Area by 12-digit HUC for the Conterminous United States
U.S. Environmental Protection Agency —
The Percentage Potential Wetland Area by HUC-12 (Pct_PWA) layer shows areas where conditions may be suitable for wetland restoration or creation at a 10-m resolution.... -
Federal
EnviroAtlas - Hydrologic Sinks for the U.S. Pacific Territories
U.S. Environmental Protection Agency —
This EnviroAtlas GIS dataset represents hydrologic sinks and major depressions in the landscape that are more than 2 meters deep, have a surface area of more than 78... -
Federal
EnviroAtlas – Potential Wetland Area on Cultivated Cropland Area for the Conterminous United States
U.S. Environmental Protection Agency —
The Percentage Potential Wetland Area on Cultivated Cropland (PWAC) layer shows areas where conditions may be suitable for wetland restoration or creation at a 10-m... -
Federal
EnviroAtlas – Potential Wetland Area for the Conterminous United States
U.S. Environmental Protection Agency —
The Potential Wetland Area (PWA) layer shows areas where conditions may be suitable for wetland habitat at a 10-m resolution. Since the 1600's, an estimated 53% of... -
Federal
EnviroAtlas - Percent Potential Wetland on Cultivated Cropland Area by 12-digit HUC for the Conterminous United States
U.S. Environmental Protection Agency —
The Percentage Potential Wetland Area by HUC-12 on Cultivated Cropland (Pct_PWAC) layer shows areas where conditions may be suitable for wetland restoration or...
6 datasets found for "Topographic Quadrangle Index"