Grand Canyon Monitoring and Research Center

Skip to content

Welcome to the Grand Canyon Monitoring and Research Center

The U.S. Geological Survey's Grand Canyon Monitoring and Research Center (GCMRC) is the science provider for the Glen Canyon Dam Adaptive Management Program. In this role, the research center provides the public and decision makers with relevant scientific information about the status and trends of natural, cultural, and recreational resources found in those portions of Grand Canyon National Park and Glen Canyon National Recreation Area affected by Glen Canyon Dam operations.


We need your help. Become a Citizen Scientist!


Can't see Flash? Install Flash Player or use the HTML version.

Thumbnail image of publication
Ecosystem ecology meets adaptive management: food web response to a controlled flood on the Colorado River, Glen Canyon External Window Icon
Large dams have been constructed on rivers to meet human demands for water, electricity, navigation, and recreation. As a consequence, flow and temperature regimes have been altered, strongly affecting river food webs and ecosystem processes. Experimental high-flow dam releases, i.e., controlled flo...
Thumbnail image of publication
Summary Report of Responses of Key Resources to the 2000 Low Steady Summer Flow Experiment, along the Colorado River Downstream from Glen Canyon Dam, Arizona External Window Icon
In the spring and summer of 2000, a series of steady discharges of water from Glen Canyon Dam on the Colorado River were used to evaluate the effects of aquatic habitat stability and water temperatures on native fish growth and survival, with a special focus on the endangered humpback chub (Gila cyp...

Style: Graphical Version | Text Version

Grand Canyon Monitoring & Research Center | 2255 North Gemini Drive Flagstaff, AZ 86001 | Phone: 928.556.7380 Fax: 928.556.7100

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey | Grand Canyon Monitoring and Research Center

Website Questions:
Maps, Imagery and Data Questions:
Last Update: November 3, 2011