A report on the geology of the Rocky Mountain National Park
Effinger WL. 1935. A report on the geology of the Rocky Mountain National Park. National Park Service. Berkeley, CA
From forward "This paper, the Geology of Rocky Mountain National Park is one of several prepared by a special research group employed under the Civil Works Program of 1933-34, by the Field Division of Education, National Park Service, Berkeley, California...The objective of this paper is the compilation of much pertinent information as will be helpful in the preparation of the geological museum exhibits at Rocky Mountain National Park, and more specifically to outline the story to be interpreted by such exhibits." Includes basic information on stratigraphy and events of geologic time periods.