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Elk Rock Island

Elk Rock Island
The island in 2008
Map
LocationMilwaukie, Oregon, U.S.
Coordinates45°26′10″N 122°38′53″W / 45.436°N 122.648°W / 45.436; -122.648[1]
Created1955[citation needed]

Elk Rock Island is an island on the Willamette River in the U.S. state of Oregon.[2] 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.[3][4][5] The city of Milwaukie took ownership of the park in April 2016.[6] The island is accessible via Spring Park.

Ecology

The island contains deciduous forest, mixed evergreen-deciduous forest and perennial graminoid vegetation.[7][8] It is one of the last stands of the Oregon White Oak.[9]

References

  1. ^ "Elk Rock Island". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2010-12-14.
  2. ^ Producer: Jim Newman (1999). "Elk Rock in Willamette River". Oregon Field Guide. Oregon Public Broadcasting. Archived from the original on March 19, 2012. Retrieved December 14, 2010.
  3. ^ Saker, Anne (September 16, 2010). "Saving the oaks of Portland's Elk Rock Island". The Oregonian. Retrieved December 14, 2010.
  4. ^ "Elk Rock Island". Portland Parks & Recreation. Retrieved December 14, 2010.
  5. ^ "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.
  6. ^ "Elk Rock Island | City of Milwaukie Oregon Official Website". www.milwaukieoregon.gov. Retrieved Aug 19, 2019.
  7. ^ "Site Survey: Elk Rock Island". Portland Parks & Recreation. Retrieved December 14, 2010.
  8. ^ "Vegetation Unit Summaries for Elk Rock Island (ERI)". Portland Parks & Recreation. July 29, 2009. Retrieved December 14, 2010.
  9. ^ Saker, Anne (Sep 17, 2010). "Saving the oaks of Portland's Elk Rock Island". oregonlive.com. Retrieved Aug 19, 2019.


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