Colorado Geological Survey
Provides geologic mapping, including digitized data for identifying
geological hazards and mineral resources; technical assistance on topics
like swelling soils, and school site and land use reviews; and research
and economic development information on Colorado's mineral and energy
industries. It is also the home of the Colorado Avalanche Information
Center.
Dibblee Geological Foundation
An organization established to publish Tom Dibblee's geologic mapping
of California. Dibblee's life-long work covers one fourth (over 40,000
square miles) of the state of California.
MIRAGE -- Geologic Maps of Canada
MIRAGE (Map Image Rendering DAtabase for GEoscience) is a digital image library of Geological Survey of Canada maps. The GSC has published thousands of maps since the mid-1800's. More than 10,000 of these maps have been scanned and are available.
Tapestry of Time and Terrain
This interactive site allows the user to digitally combine geologic and topographic maps of the United States by state or physiographic regions.
USGS National Geologic Map Database
A database created by U.S. Geological Survey to serve as a national
archive containing geologic maps and related publications. The database
contains geologic, geophysical, geochemical, geochronologic, and paleontologic
information.
USGS National Seismic Hazard Maps
Part of the Earthquake Hazards program. The USGS provides seismic hazard assessments for the U.S. and areas around the world.
PaleoMap Project
Illustrates the plate tectonic development of the ocean basins and continents
during the past 1100 million years.
Interactive Geology Project
At the University of Colorado, Boulder. Interactive displays and computer
animations showing changes through geologic time and illustrating basic
principles of geology. [unavailable as of 2/25/08]
