Hydrogeomorphic Regions

Chesapeake Bay Watershed

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Chesapeake Bay Program
A Watershed Partnership

Data Sources: U.S. Geological Survey.

Bachman, L.J., Lindsey, B.D., Brakebill, J.W. and Powars, D.S. 1998.
Ground-Water Discharge and Base-Flow Nitrate Loads of Nontida I
Streams, and Their Relation to a Hydrogeomorphic Classification of
the Chesapeake Bay Watershed, Middle Atlantic Coast.

For more information, visit www.chesapeakebay.net
Disciaimer: www.chesapeakebay.netAermsofuse.htm

0	25 50	100 Kilometers

1	i i i i i i i i
I—r

Hydrogeomorphic Region

Appalachian Plateau Carbonate
Appalachian Plateau Siliciclastic
Blue Ridge

Coastal Plain Disected Upland
Coastal Plain Lowland
Coastal Plain Upland
Mesozioc Lowland
Piedmont Carbonate
Piedmont Crystalline
Valley and Ridge Carbonate
Valley and Ridge Siliciclastic

Hydrogeomorphic regions were characterized
from generalized lithology (rock type) and
physiography based on geologic formations.

Created by JW, 2/11/08	UTM Zone 18N, NAD 83

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