Under the crust
Subtitle: Turn the soil and you will find all the riches that are needed by man. Secrets of the earth exposed for the benefit of the human race. The golden era now bursting on the United States. Fact and legends of the mountains woven in narrative
Contributors: Denver, South Park, and Pacific Railroad Company
Publisher: Passenger Dept. of the Gulf Road and South Park Line
Published: 1896
Place of publication: Denver]
Language: eng
Number of pages: 128
Subjects: Gold mines and mining
Other titles: Colorado's gold.
Notes: Cover title: Colorado's gold.