Elk Rock Island
|Elk Rock Island|
Elk Rock Island is an island on the Willamette River in the U.S. state of Oregon. The 12- to 13-acre (4.9- to 5.3-ha) island, formed 40 million years ago by a volcano, was given to Portland by Peter Kerr in 1940. The city of Milwaukie took ownership of the park in April 2016.
- "Elk Rock Island". Geographic Names Information System. United States Geological Survey. Retrieved 2010-12-14.
- Producer: Jim Newman (1999). "Elk Rock in Willamette River". Oregon Field Guide. Oregon Public Broadcasting. Retrieved December 14, 2010.
- Saker, Anne (September 16, 2010). "Saving the oaks of Portland's Elk Rock Island". The Oregonian. Retrieved December 14, 2010.
- "Elk Rock Island". Portland Parks & Recreation. Retrieved December 14, 2010.
- "Friends of Elk Rock Island" (PDF). Portland Parks & Recreation. Retrieved December 14, 2010. Note: Brochure funded by City of Portland Bureau of Environmental Services and Portland Parks & Recreation in cooperation with the Friends of Elk Rock Island and the Island Station Neighborhood in the City of Milwaukie.
- "Site Survey: Elk Rock Island". Portland Parks & Recreation. Retrieved December 14, 2010.
- "Vegetation Unit Summaries for Elk Rock Island (ERI)". Portland Parks & Recreation. July 29, 2009. Retrieved December 14, 2010.
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