Upper Animas River Study Area | USGS Abandoned Mine Lands Initiative
This is a section of the USGS Abandoned Mine Lands Initative (AMLI) site.
Upper Animas River Watershed, Colorado Study Area
The Animas River watershed is one of many watersheds in the western United States where historical mining has left a legacy of acid mine drainage and elevated concentrations of potentially toxic trace elements. Many abandoned mine lands are located on or directly affect Federal land. Cleaning up these Federal lands and restoring these watersheds will require a substantial investment of resources and many years of work. As part of a cooperative effort with Federal land-management agencies, the U.S. Geological Survey implemented an Abandoned Mine Lands Initiative in 1997. One of the two watersheds studied under the initiative was the Animas River watershed in Colorado.
![map showing study locations in CO and MT](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/AMLI-Figure2-Watersheds.png?itok=RZpHdivf)
This is a section of the USGS Abandoned Mine Lands Initative (AMLI) site.
USGS Abandoned Mine Lands Initiative
Below are publications associated with this project.
Integrated investigations of environmental effects of historical mining in the Animas River Watershed, San Juan County, Colorado
Metal loading assessment of a small mountainous sub-basin characterized by acid drainage -- Prospect Gulch, upper Animas River watershed, Colorado
Hydrologic and water-quality data at selected sites in the Upper Animas River watershed, southwestern Colorado, 1997-99
Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan Mountains, Colorado
Analytical results for mine dump samples and leachate solutions, upper Animas River watershed, San Juan County, Colorado
Interim report on the scientific investigations in the Animas River watershed, Colorado to facilitate remediation decisions by the U.S. Bureau of Land Management and the U.S. Forest Service, March 29, 2000 meeting, Denver, Colo.
Geoelectrical studies of a trenched line across the Animas River, San Juan County, Colorado
Geochemical and isotopic data from streambed sediment, Animas River watershed, Colorado, 1995-1999
Geochemical and lead isotopic data from sediment cores, fluvial tailings, iron bogs, and pre-mining terrace deposits, Animas River watershed, Colorado, 1995-1999
Geochemical investigations and interim recommendations for priority abandoned mine sites, BLM lands, upper Animas River watershed, San Juan County, Colorado
Geochemical investigations and interim recommendations for priority abandoned mine sites on U.S.D.A. Forest Service lands, Mineral Creek watershed, San Juan County, Colorado
Determination of chemical-constituent loads during base-flow and storm-runoff conditions near historical mines in Prospect Gulch, upper Animas River watershed, southwestern Colorado
Using flood-analysis techniques to estimate dissolved-zinc concentrations
This is a section of the USGS Abandoned Mine Lands Initative (AMLI) site.
Upper Animas River Watershed, Colorado Study Area
The Animas River watershed is one of many watersheds in the western United States where historical mining has left a legacy of acid mine drainage and elevated concentrations of potentially toxic trace elements. Many abandoned mine lands are located on or directly affect Federal land. Cleaning up these Federal lands and restoring these watersheds will require a substantial investment of resources and many years of work. As part of a cooperative effort with Federal land-management agencies, the U.S. Geological Survey implemented an Abandoned Mine Lands Initiative in 1997. One of the two watersheds studied under the initiative was the Animas River watershed in Colorado.
![map showing study locations in CO and MT](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/AMLI-Figure2-Watersheds.png?itok=RZpHdivf)
This is a section of the USGS Abandoned Mine Lands Initative (AMLI) site.
USGS Abandoned Mine Lands Initiative
Below are publications associated with this project.