Shorelines and vertebrate fauna of Pleistocene Lake Bonneville, Utah, Idaho, and Nevada

  • Mark Milligan Utah Geological Survey
  • H. Gregory McDonald Bureau of Land Management
Keywords: Bonneville, Pleistocene, Lake, Gilbert, Lacustrine, Stockton Bar, Great Salt Lake

Abstract

Pleistocene Lake Bonneville created many classic examples of lacustrine shoreline landforms, which preserve a wide variety of vertebrate fossils. This field guide provides a review of the published literature for a sampling of the lake’s world-class localities. This guide also provides a brief overview of modern Great Salt Lake and its microbialites recently exposed by near-record low lake levels. Stops include G.K. Gilbert Geologic View Park, Draper spit, Steep Mountain beach, Point of the Mountain spit, American Fork delta, Stockton Bar, and Great Salt Lake State Park.

Restored outline of Lake Bonneville. Geological data by G.K. Gilbert and E.E. Howell. Lithography by J. Bien. Dated 1876. From, “Topographical Atlas Projected to Illustrate United States Geographical Surveys West of e 100th Meridian,” a collection of 135 topographical and geological atlas sheets, 1876 to 1881. Downloaded from the David Rumsey Map Collection, www. davidrumsey.com. Ancient lake surface in light blue. Present (1876) lake surfaces and running water courses in dark blue. Ancient land surface in dark drab. ought to be the oldest published map of Lake Bonneville, this 1876 map does not show the full extent of the lake as depicted in Gilbert’s 1890 monograph.
Published
2017-12-01
How to Cite
Milligan , M., and McDonald , H., 2017, Shorelines and vertebrate fauna of Pleistocene Lake Bonneville, Utah, Idaho, and Nevada: Geology of the Intermountain West, v. 4, p. 181-214., doi: 10.31711/giw.v4.pp181-214.