Colorado Geology
All sorts of content about Colorado geology: its rocks, landforms and deep history.
Geologic Map of Colorado
A huge classic map from the U.S. Geological Survey, presented here at two sizes: extra small and extra large.
A huge classic map from the U.S. Geological Survey, presented here at two sizes: extra small and extra large.
Colorado Geological Survey
The "Colorado Geology" section of this state site has a wide assortment of facts, factoids, maps and photos.
The "Colorado Geology" section of this state site has a wide assortment of facts, factoids, maps and photos.
Touring Colorado Geology
A wide and deep site by high-school geology teacher John Ghist, with maps, tours, galleries and much more.
A wide and deep site by high-school geology teacher John Ghist, with maps, tours, galleries and much more.
Colorado Geology Photojournals
Jeremy McCreary is a physician by day and a passionate amateur of geology and photography the rest of the time. His site is enthusiastic, beautiful and unrestrained.
Jeremy McCreary is a physician by day and a passionate amateur of geology and photography the rest of the time. His site is enthusiastic, beautiful and unrestrained.
Colorado Mining and Mineral Museums
Colorado Mining and Mineral Museums - The Colorado Geological Survey lists 10 museums and 12 tours, most of them with links. (PDF)
Colorado Mining and Mineral Museums - The Colorado Geological Survey lists 10 museums and 12 tours, most of them with links. (PDF)
Colorado Quarries
A deep page of mines and stone sources from Peggy Perazzo's Quarries and Beyond site.
A deep page of mines and stone sources from Peggy Perazzo's Quarries and Beyond site.
Black Canyon of the Gunnison National Park
One of America's most remote and spectacular places is in central Colorado.
One of America's most remote and spectacular places is in central Colorado.
Treasure Tales of Colorado
Thegeozone.com presents detailed information on lost mines and lodes from Colorado.
Thegeozone.com presents detailed information on lost mines and lodes from Colorado.
Boulder: Geology of the Boulder Area
The city has a great section on this subject.
The city has a great section on this subject.
Boulder: Geology West of NCAR
The National Center for Atmospheric Research is in a spectacular geologic setting for this 4-km hike.
The National Center for Atmospheric Research is in a spectacular geologic setting for this 4-km hike.
Denver: Ancient Denvers
The Denver Museum of Nature & Science commissioned a series of large murals illustrating Denver at 13 different times in geologic history—and where to see the corresponding rocks.
The Denver Museum of Nature & Science commissioned a series of large murals illustrating Denver at 13 different times in geologic history—and where to see the corresponding rocks.
Denver: Dinosaur Ridge
One of the world's greatest dinosaur fossil sites and a National Natural Landmark, Dinosaur Ridge is west of Denver and always open for visits.
One of the world's greatest dinosaur fossil sites and a National Natural Landmark, Dinosaur Ridge is west of Denver and always open for visits.
Denver: Fossils of Triceratops Trail
Dinosaur tracks and other fine fossils are preserved in a National Natural Area.
Dinosaur tracks and other fine fossils are preserved in a National Natural Area.
Denver: Jefferson County Open Spaces
Trail-side geology of several localities near Lakewood.
Trail-side geology of several localities near Lakewood.
Colorado National Monument
The plateau lands north of Grand Junction are preserved in this remote park.
The plateau lands north of Grand Junction are preserved in this remote park.
Denver: The Rocks of Red Rocks, Colorado
Pictures of the distinctive Fountain Formation of the Colorado Front Range exposed at Red Rocks Park.
Pictures of the distinctive Fountain Formation of the Colorado Front Range exposed at Red Rocks Park.
Dinosaur National Monument
Straddling the Utah line is this world-class attraction.
Straddling the Utah line is this world-class attraction.
Durango: Four Corners Geological Society
This organization meets bimonthly, except summer, in Durango.
This organization meets bimonthly, except summer, in Durango.
Florissant Fossil Beds National Monument
One of the world's foremost fossil sites is in the Rockies west of Colorado Springs.
One of the world's foremost fossil sites is in the Rockies west of Colorado Springs.
Front Range Geology for Citizens
An article in GSA Today reports on rocks and fossils retrieved from construction projects and drilling.
An article in GSA Today reports on rocks and fossils retrieved from construction projects and drilling.
Front Range Geologic Hazards
An unusual field trip between Golden and Boulder focusing on various hazards. (PDF)
An unusual field trip between Golden and Boulder focusing on various hazards. (PDF)
Glenwood Springs Field Trip
Parts of this trip, on the west edge of the Rockies, are off-limits on private land, but the rest is fair game. (PDF)
Parts of this trip, on the west edge of the Rockies, are off-limits on private land, but the rest is fair game. (PDF)
Golden: Geology of the Golden Area
Geologic highlights of the Golden area, west of Denver.
Geologic highlights of the Golden area, west of Denver.
Golden: Local Geology
The Colorado School of Mines presents a local geologic map and explanation (PDF).
The Colorado School of Mines presents a local geologic map and explanation (PDF).
The Great Plains
Half of Colorado is in the Great Plains, and this U.S. Geological Survey bulletin is where to start.
Half of Colorado is in the Great Plains, and this U.S. Geological Survey bulletin is where to start.
Great Sand Dunes National Park
The tallest dunes in North America are here near the Sangre de Cristo Mountains.
The tallest dunes in North America are here near the Sangre de Cristo Mountains.
La Junta: Purgatoire River Dinosaur Trackway
Field guide for a cross-country bicycle trip to a remote dinosaur site on the Purgatoire River in the High Plains of southeastern Colorado. (PDF)
Field guide for a cross-country bicycle trip to a remote dinosaur site on the Purgatoire River in the High Plains of southeastern Colorado. (PDF)
Rocky Mountain National Park
A long page of notes from the National Park Service.
A long page of notes from the National Park Service.
Sangre de Cristo Range
A detailed road log from a hard-core field trip over the range from Westcliffe to Crestone in southe-central Colorado.
A detailed road log from a hard-core field trip over the range from Westcliffe to Crestone in southe-central Colorado.
Trinidad: South-Central Colorado Geology
James Aber of Emporia University put this up for his students, but you can see it too.
James Aber of Emporia University put this up for his students, but you can see it too.
Trinidad: Spanish Peaks Igneous Petrology
Even if you don't follow petrology, the photos on Brian Penn's site will draw you to this area near Trinidad.
Even if you don't follow petrology, the photos on Brian Penn's site will draw you to this area near Trinidad.
Colorado Campgrounds
About.com's David Sweet guides you to the best outdoor places to stay.
About.com's David Sweet guides you to the best outdoor places to stay.
Colorado Maps
About.com's Matt Rosenberg helps get you oriented.
About.com's Matt Rosenberg helps get you oriented.
Colorado Scenic Roads
About.com's Darren Smith shows you the best ways to get around.
About.com's Darren Smith shows you the best ways to get around.