Utah History to Go
Dinosaur National Monument
From War to war


World War I and Utah
Utah's Capitols
Herbert S. Auerbach, Renaissance Man
Utah's "Ugly Duckling" Salt Flats
Publicizing Bryce Canyon
The Last Indian Uprising
Home Industry 20th Century Style
Some 80 Utah Nurses Served in World War I
World War I Heroine Maud Fitch Lived in Eureka, Utah
Mexican Families and the Sugar Industry in Garland
The Development of Zion National Park
The Twenties
Artist John Held, Jr. Created Cultural Icons, 1920's
Media Development in Weber County
Silent Films Intrigued & Occasionally Offended
Coal Production Amid the Wars
Sheep Fueled 1920's Economy
Military Installations
Boxcars and Section Houses
Jack Dempsey Loved Fighting, Mining, and Cowboying
Radio in Utah Began in May 1922 on Station KZN
The Cigarette Ban of the 19020's Caused an Uproar
Prohibition Failed to Stop the Liquor Flow in Utah
Lawyer Ran For President on the Farmer-Labor Ticket
George Sutherland Served on the U.S. Supreme Court
Alice Stratton Feared and Made Fun of "Kaiser Bill"
Klansmen at a Funeral and a Terrible Lynching
President Harding's 1923 Visit to Utah
Growing Crops For the Cannery
Dinosaur National Monument
The Fathers of Capitol Reef National Park
Ogden's the Bigelow-Preserves a Historic Area
Philo T. Farnsworth's Invention
The Beginnings of Commerical Aviation
The White Book Road Guide
The Great Depression
Depression Memories
"Even Grasshoppers Were Starving" During Drought
New Deal Agencies Built 233 Buildings in Utah
"Alphabet" Agencies in Utah County
The Civilian Conservation Corps Was a Boon to Utah
The Civilian Conservation Corps
Marriner S. Eccles Helped Design FDR's New Deal
Reed Smoot and the Smoot-Hawley Tariff, 1930
Reed Smoot & America's Natural Resources, 1903-33
Children in the 1930's Hoped to Become Nurses & Pilots
Arches National Monument
A Labor Inspector During the Great Depression
Clean Clothes Blowing in the Breeze
Utah's Rosies in the War
Garfield County Airport Has Unusual Hangar
Marie Ogden Led Spiritual Group in San Juan County
Uinta Basin Group Trekked to the 1933 World's Fair
Helen Hofmann Bertagnole-"Utah's Queen of Swing"
World War II in Utah
How Trains Helped Win a War
The War Effort at Home
Topaz Relocation Center
Topaz: Japanese American Interned in UT During WWII
Japanese Agricultural Colony at Keetley
Utahn Survives the Attack at Pearl Harbor
The USS Salt Lake City Made History
Utah Naval Officer Died a Hero's Death at Pearl Harbor
Rhymes Filled Children's Autograph Books
Utah's Rosies Upshot
Women Workers and Housing Issues
World War II Claimed the Lives of Four Utah Brothers

G.E. Untermann and B.E. Untermann
Historical Quarterly 26 July 1958



Split Mountain Canyon

One of the most unique and colorful areas in the entire National Park system is Dinosaur National Monument with its outstanding scientific and scenic interests. The Dinosaur Quarry, six miles north of Jensen, Utah, is world famous for the quantity, variety, and fine degree of preservation of the fossils it has produced. Twenty-three nearly complete skeletons were recovered, representing twelve different species of dinosaurs, most of which were beautifully preserved and as hard as the enclosing rock. The quarry and Split Mountain section nearby are replete with a great variety of material of geologic interest. The dinosaur fossils themselves occur in the Morrison Formation of Upper Jurassic Age and were laid down in an old stream channel one hundred forty million years ago. The quarry represents a sandbar or quiet cove in this ancient stream where the dinosaurs were washed in and lodged in large numbers just as driftwood lodges along sandbars in rivers today.

The history of the quarry began when Professor Earl Douglass of the Carnegie Museum, Pittsburgh, Pennsylvania, discovered outcropping fossil bones on August 19, 1909. The excavation of the bones developed the quarry, which was operated by the Carnegie Museum until 1923. In 1923-24 the National Museum, Washington, D.C., and the University of Utah collected material at the site. No fossils have been removed by anyone since 1924.


Reliefing dinosaur bones

It has long been the plan to relief some of the remaining fossil material on the quarry face, leaving it etched out to form a striking exhibit-in-place. Not until national attention was focused on Dinosaur National Monument through the publicity it received as a result of the controversial Echo Park Dam debate were funds made available for the development of the quarry program, which has now become a part of the Park Service Mission 66. This ten-year program for the improvement of National Park Service areas has made several million dollars available for the development of Dinosaur. [On] June 15, 1958, the new Visitor Center and Museum at the quarry opened to the public. The north wall of this unique structure [is] the quarry face itself, upon which are reliefed the dinosaur bones, left in place just as nature deposited them. This [is] one of the most striking exhibits to be seen anywhere.


Visitors inspecting specimens in 1937

During the operation of the quarry by Professor Douglass, he was plagued by theft of his fossil material and by vandalism. In the hope that he would have better control of the fossil deposits he tried to stake them out as a mining claim. However, he was told by uninformed personnel of the Department of the Interior, in Washington, that fossils were not minerals and that he would not be permitted to stake his claim. Actually, minerals of one kind or another replace most fossils, so they are minerals; but official Washington was not aware of this, and the professor's petition was denied. As a last resort he sought to have the quarry set aside as a National Monument and was successful in this when President Woodrow Wilson so proclaimed the eighty acres comprising the quarry area, on October 4, 1915. In 1938 the Monument was enlarged to 204,000 acres to include the scenic canyons of the Green and Yampa rivers. As now constituted three-fourths of Dinosaur National Monument lies in northwestern Colorado, a portion included in what is known as the Canyon Unit.


The Land
American Indians
Trappers, Traders, & Explorers
Pioneers & Cowboys
Mining & Railroads
Statehood & the Progressive Era
From War to War
Utah Today