https://www.usgs.gov/media/images/garrison-dam-spillway-1
Looking up at the Garrison Dam Spillway in North Dakota. In this picture you can see the darker water further back, which would be the sediment line.
garrison damgeological surveyspillway
https://www.usgs.gov/media/images/garrison-dam-and-spillway
Looking to the southwest at the Garrison Dam Spillway located to the left in this picture and the Garrison Dam located to the right in this picture. Photo...
garrison damgeological surveyspillway