Lake Lawrence erratic

Lawrence Lake erratic

The Lawrence Lake erratic is a glacial erratic boulder near Lake Lawrence in Thurston County, Washington.[1][2] The boulder is about 15 feet (4.6 m) tall. Lake Lawrence itself was formed when the Vashon Glaciation created most of the topography seen in the Puget Sound region.[3] The erratic is one of the southernmost in the Puget Sound region, near the limit of the Yelm lobe of the Vashon Glacier in the Rainier area.[4]

References

  1. ↑ Maurice John Mundorff, James M. Weigle, and Glen D. Holmberg (1955), Ground water in the Yelm area, Thurston and Pierce counties, Washington, United States Geological Survey, p. 9, USGS circular 356
  2. ↑ Kruckeberg, Arthur R. (1995), The Natural History of Puget Sound Country, University of Washington Press, p. 21, ISBN 9780295974774
  3. ↑ Andy Walgamott (April 27, 2012), "Geology of Northwest Fishing and Hunting: How a Giant Ice Cube Made Your Trout/Bass Lake", Northwest Sportsman
  4. ↑ Timothy J. Walsh and Robert L. Logan (2005), Geologic Map GM-56: Geologic Map of the East Olympia 7.5-minute Quadrangle, Thurston County, Washington (PDF), Washington Department of Natural Resources

Coordinates: 46°51′54″N 122°34′45″W / 46.86507°N 122.57904°W / 46.86507; -122.57904 (Lake Lawrence erratic)


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