USGS

Environmental Protection Agency and US Geological Survey. 2000. US Environmental Protection Agency US Geological Survey National Hydrography Dataset.

• USGS
• watershed
• GIS
• hydrology
• NHD
• EPA

USGS. 2000. National Elevation Dataset (NED) New Mexico (30 meter) US Geological Survey June 2000.

• USGS
• National Elevation Dataset
• NED

Environmental Protection Agency and US Geological Survey. 2000. US Environmental Protection Agency US Geological Survey National Hydrography Dataset.

• USGS
• hydrology
• NHD
• EPA

Osborn, R., G. Kittel, and M. Reid. 1999. Riparian plant associations of Colorado and vegetation classification of the western United States.

• The Nature Conservancy
• USGS
• Colorado
• GIS
• riparian