USGS - science for a changing world

Colorado Water Science Center

Home Information/Data Projects Publications WebCams Contact Follow UsTwitter

CO Map with project location


Upper Animas River Basin Abandoned Mine Lands Initiative


Upper Animas River Basin Abandoned Mine Lands Initiative

Study Area: Upper Animas River Watershed, San Juan County, southwestern Colorado
Period of Project: October 1996-September 2002
Project Number: CO310
Project Chief: Kirby Wynn
Cooperator: USGS Toxic Substances Hydrology Program


The USGS Abandoned Mine Lands Initiative (AMLI) is developing and demonstrating scientific knowledge and technologies that will help Federal land management agencies clean up contamination in areas near abandoned hardrock mines across the Nation. The Initiative is being conducted in two pilot watersheds, the Upper Animas River Basin in Colorado and the Boulder River watershed in Montana, where the USGS is partnering with the U.S. Forest Service, BLM, NPS, EPA, and State agencies in Colorado and Montana.


  1. To define background (premining) conditions.
  2. To define baseline (current) conditions.
  3. To identify target sites that contribute most to environmental deterioration.
  4. To characterize target sites and processes for contaminant dispersal.
  5. To characterize ecosystem health and controlling processes.

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: gs-w-codist_webmaster
Page Last Modified: Thursday, 15-Dec-2016 17:51:45 EST