NC Zoo Groundwater Monitoring and Research Station
Randolph County, NC
Daniel, C.C., III, and Payne, R.A., 1990, Hydrogeologic unit map of the Piedmont and Blue Ridge Provinces of North Carolina: U.S. Geological Survey Water-Resources Investigation Report 90-4035, 1 sheet, scale 1:500,000.
Daniel, C. C., III, and Dahlen, P. R., 2002, Preliminary Hydrogeologic Assessment and Study Plan for a Regional Ground-Water Resource Investigation of the Blue Ridge and Piedmont Provinces of North Carolina: U.S. Geological Survey Water-Resources Investigations Report 02-4105, 60p.
NC DENR-DWR, 585 Waughtown St, Winston-Salem, NC 27107