The National Park Service's Geologic Resources Inventory (GRI) Team announced the completion and availability of digital geologic map coverage for Organ Pipe Cactus National Monument (ORPI). Providing parks with digital geologic maps meets the geologic inventory goal defined by the NPS Inventory and Monitoring Program. This map is provided in full GIS coverage. [right, Arch Canyon area of the park. Credit NPS-ORPI]
AZGS is currently mapping the surficial geology in parts of Organ Pipe, in cooperation with NPS to complement the bedrock geology in this newly released map.
Ref: Skinner, L.A., Haxel, G., and Umhoefer, P.J.,2008, Geological Reconnaissance at Organ Pipe Cactus National Monument,Arizona: Northern Arizona University, Unpublished Digital Data, 1:24000