Glen Canyon Dam
![Glen Canyon Dam](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/1000000952.jpg?itok=gSj3LRk8)
Detailed Description
The image above is a photograph of the Glen Canyon Dam (GCD) in Arizona. Recent captures of non-native fishes in the Colorado River downstream of GCD indicate a potential threat to imperiled native fish in the Grand Canyon. Within the last two years, biological survey teams have observed increasing captures of non-native fish species including smallmouth bass, green sunfish, and bluegill throughout the Lees Ferry Reach (approximately 15 river miles from GCD).
Sources/Usage
Public Domain.