Unpublished Digital Geologic Map of Colonial National Historical Park and Vicinity, Virginia (NPS, GRD, GRI, COLO, COLO digital map) adapted from a Virginia Division of Geology and Mineral Resources Geologic Map by Berquist (2015)
The Unpublished Digital Geologic Map of Colonial National Historical Park and Vicinity, Virginia is composed of GIS data layers and GIS tables in a 10.1 file geodatabase (colo_geology.gdb), a 10.1 ArcMap (.MXD) map document (colo_geology.mxd), individual 10.1 layer (.LYR) files for each GIS data layer, an ancillary …