The Geologic Story of Colorado National Monument / Revised Edition
BALANCED ROCK, near head of Fruita Canyon. Spire and rock are Wingate Sandstone resting on red Chinle Formation; thin caprock is protective layer of resistant Kayenta Formation. (Frontispiece)
By S. W. Lohman
GEOLOGICAL SURVEY BULLETIN 1508
UNITED STATES DEPARTMENT OF THE INTERIOR JAMES G. WATT, Secretary
GEOLOGICAL SURVEY Doyle G. Frederick, Acting Director
For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402
Page
West side of Otto’s Monument
JOHN OTTO, fantastic father of Colorado National Monument, and his helpers. Photograph courtesy Grand Junction Chamber of Commerce. (Fig. 1)
It was still there in the 50’s when my family and I were startled to find it. We were afraid it might be lost forever so are glad it finally found a safe resting place on a concrete slab at the museum. I shall greatly appreciate hearing from any reader who can decipher this enigma.
JOHN OTTO’S MONUMENT, at southwest corner of the Historical Museum and Institute of Western Colorado, at northeast corner of Fourth Street and Ute Avenue, Grand Junction. View looking north. Face is 4 feet square. (Fig. 2)
A modern Visitor Center, new housing facilities for park personnel, additions to the campgrounds, the Devils Kitchen Picnic Area near the East Entrance, several self-guiding nature trails, and additional overlooks and roadside exhibits were completed in 1964 as part of the Mission 66 program of the National Park Service.
Stanley William Lohman
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Contents
Figures
Preface
History of the Monument
Early History of the Region
Prehistoric People
Late Arrivals
Recent Cave Dweller
Artesian Wells
Geographic Setting
The Geologic Story Begins
Ancient Rocks and Events
A Great Gap in the Rock Record
The Age of Reptiles
Early Landscape
Ancient Sand Dunes
The Rains Came
Another Gap in the Rock Record
The Sea to the West
Deposits and Events East of the Sea
Dinosaurs Roam the Monument
Dinosaurs on the Move
Yet Another Gap in the Rock Record
Peat Bogs
The Sea Covers the Plateau
The Sea’s Final Retreat
End of the Dinosaurs
The Age of Mammals
Early Deposits and Events
Lake Uinta
The Mountains Rise Again
Ancestral Colorado River
Piracy on the High Plateaus
The Age of Man
The Ice Age
Capture of East Creek
Canyon Cutting
A Look into the Future
How to See the Monument
From Grand Junction through the Redlands to the West Entrance of the Monument
From Fruita to the West Entrance of the Monument
Through the Monument from West to East Entrances
From the East Entrance to Grand Junction
Through Glade Park from the Northwest Arm of Ute Canyon to Columbus Canyon
From Glade Park to Grand Junction Via the Little Park Road
Résumé of Geologic History and Relation to Other National Parks and Monuments in the Colorado Plateau
Acknowledgments
References
Additional Reading
Footnotes
Transcriber’s Notes
Transcriber’s Note on Linking between eBooks