Photo By/Credit
USFWS
Date Shot/Created
11/09/2023Media Usage Rights/License
Public Domain
Image
At Great Dismal Swamp National Wildlife Refuge in Virginia and North Carolina, staff can adjust the amount of water retained by the water control structure by adding or removing steel stop-logs. The structure was installed as part of an effort to "rewet" the swamp — restore its natural hydrology after loggers and others drained it starting in the 18th century.
Ecosystem
Wetland