Physiographic Map of FREDERICK Winchester CLARKE Virginia Counties LOUDOUN WARREN 2000 ARLINGTON FAUQUIER FAIRFAX C. Roberts & C.M. Bailey, College of William & Mary SHENANDOAHM RAPPAHANNOCK PRINCE F WILLIAM PAGE CULPEPER AP ML Modified from Virginia Division of Mineral Resources/ STAFFORD U.S. Geological Survey Map of Mineral Producing Localities ROCKINGHAM MADISON HIGHLAND Fredericksburg KING http://minerals.usgs.gov/minerals/pubs/state/985199mp.pdf RV GREENE GEORGE ORANGE WESTMORELAND 0 50 100 AUGUSTA ALBEMARLE SPOTSYLVANIA RICHMOND BATH Charlottesville CAROLINE miles GV LOUISA CU CU NORTHUMBERLAND KINGESSEX CL BM 0 50 100 ROCKBRIDGE nBR KING FLUVANNA HANOVER ALLEGHANY & LANCESTER kilometers NELSON WILLIAMQUEEN CL GOOCHLAND ACCOMACK HENRICO CU MIDDLESEX BM AMHERST BUCKINGHAM Richmond POWHATAN NEW GLOUCESTER BOTETOURT KENT MATHEWS CRAIG JAMES APPOMATTOX CHESTER CHARLES FIELD CITY CITY Lynchburg CUMBERLANDAMELIA CL YORK NORTHAMPTON GILES ROANOKE BEDFORD NEWPORT Roanoke PRINCE PRINCE NEWS BUCHANAN GEORGE RV MONTGOMERY CAMPBELL EDWARD NOTTOWAY DICKENSON BLAND SURRY HAMPTON TAZEWELL F DINWIDDIE AP PULASKI CHARLOTTE CU ISLE OF GV FRANKLIN SUSSEX WISE RUSSELL LUNENBURG WIGHT WYTHE FLOYD OP Norfolk BRUNSWICK SMYTH sBR VIRGINIA BEACH PITTSYLVANIA SOUTHAMPTON BM HALIFAX CHESAPEAKECL CARROLL MECKLENBURG PATRICK SCOTT WASHINGTON GRAYSON LEE HENRY GREEN- CL NANSEMOND SVILLE Appalachian Plateau Valley & Ridge Blue Ridge Piedmont Coastal Plain province province province province province AP- Rugged, well-dissected RV- Ridge & Valley nBR- northern Blue Ridge F- Foothills subprovince: CU- Upland subprovince: landscape with dendritic subprovince: long linear subprovince: rugged region region with broad rolling broad upland with low slopes drainage pattern. Elevation- ridges separated by linear with steep slopes narrow hills and moderate slopes. and gentle drainage divides. 1000'-3000' with High Knob valleys with trellis ridges, broad mountains, Elevation 400'-1000' with Steep slopes develop where dissected by stream erosion. rising to over 4000'. drainage pattern. and high relief. Elevation peaks rising to 1500'-2500'. Elevation- 1000'-4500'. 1500'-4200'. Elevation- 60'-250'. ML- Mesozoic lowlands GV- Great Valley subprovince: region with CL- Lowland subprovince: flat, low-relief region along subprovince: broad valley sBR- southern Blue Ridge modest relief and low with low to moderate slopes slopes underlain by major rivers and near the subprovince: broad upland Chesapeake Bay. Elevation- underlain by carbonate plateau with moderate Mesozoic sedimentary and 0-60'. rocks. Elevation- 500'-1500' slopes. Elevation 2400'- 3000' igneous rocks. Elevation north of Roanoke, 1200'-2300' with higher peaks rising 200'-400'. south of Roanoke above upland, including BM- Barrier Islands & Salt OP- Outer Piedmont Marshes: low, open areas M- Massanutten Mountain: 5729' Mt. Rogers. subprovince: broad upland covered with sediment and Series of long linear ridges with low to moderate slopes. vegetation in direct proximity that rise to 3000' above the Elevation 600'-1000' in west to the Chesapeake Bay and Great Valley gradually diminishing to Atlantic Ocean. Elevation 0'-15'. 250'- 300' in east..