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Expedition Island

Green River, Wyoming
County of Sweetwater.
Near east bank of the Green River
National Register Number: 68000056
Resource type: Site.
Property type: Domestic - camp. The threat level was Satisfactory in
Congressional District: WY- at-Large Certified Local Government: YES
This NHL offers public access.
Please contact the NHL directly for visitor information.
Current use/information: City park. www.cityofgreenriver.com/parksnrec; http://wyoshpo.state.wy.us/expisld.htm.

Statement of Significance (as of designation - October 18, 1968):
This was the embarkation point of Major John Wesley Powell's 1871 expedition down the Green and Colorado Rivers and possibly for his 1869 trip as well. On these trips, Major Powell explored the last large land area unknown to European-Americans in the mainland United States.

There are no threats to the landmark.

In spring of 2008, the access bridge to the park was replaced.

Comments and questions about the database may be directed to NHL_info@nps.gov