Gerla, P., R. Whitaker, and S. Trobec. 2011. Water quality data from Judicial Ditch 66 and vicinity, Glacial Ridge Project, Mentor, Minnesota. GlacialRidge. The Nature Conservancy - Minnesota, North Dakota, and South Dakota Chapter and the University of North Dakota. Data retrieved from CUAHSI HIS on April 25, 2011.
In 2000, The Nature Conservancy Minnesota Chapter purchased the 10,000 ha Tilden Farms property near Crookston, northwestern Minnesota. During the following decade, the cultivated and grazed lands that comprised the property were restored to perennial prairie and wetland. These lands are now being turned over to the U.S. Fish and Wildlife Service for inclusion and management within the Glacial Ridge National Wildlife Refuge. As reconstructed tracts mature, on-going monitoring reveals the changes in water quality, runoff, and groundwater recharge at selected locations.