Note 34 — Chapter VI
Reading edition
"Geology of the Henry Mountains," U.S. Geog. and Geol. Survey of the Rocky Mountain Region, 1877. For a review of the whole subject of laccolites in Western America see a paper by Mr. Whitman Cross, in the 14th Annual Report of the Director of the U.S. Geological Survey, 1892-93 (pub. 1895), p. 157.