Experiments are conducted to determine
how releases from Glen Canyon Dam and other management actions can be used to meet
key resource goals. The
GCMRC is best known for a series of three high-flow experiments, or
water releases designed to mimic natural seasonal flooding, conducted in 1996, 2004,
and 
The GCMRC
makes consistent, long-term repeated measurements using scientifically accepted
protocols to measure status and trends of key resources, including native and nonnative
fish, sandbars, water quality, aquatic food base, riparian vegetation, and cultural
sites.
Research and development activities address specific hypotheses related to key resources
and develop and test new technologies or monitoring procedures. For example, new
methods are being developed for tracking the movements of fish.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.
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