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Walnut Gulch Watershed, AZ
North Carolina Coastal Plains
Sweet and Geratz, 2003
Miller, 1995
Eastern Arizona/ New Mexico sites
Moody et al., 2003
Central & Southern Arizona sites
Appalachian Highlands: Piedmont Province - Piedmont Upland
USDA-NRCS-NWMC, n.d.
Appalachian Highlands: Blue Ridge Province - Southern Section
Appalachian Highlands: New England Province - New England Upland Section
Interior Plains: Central Lowland - Osage Plains
Interior Highlands: Ozark Plateaus - Springfield-Salem Plateaus