Expedition Island

Expedition Island is a park in Green River, Wyoming, that marks the area where Major John Wesley Powell started an expedition down the Green River and Colorado River in 1871. The park is also believed to mark where Major Powell started a similar expedition down the two rivers in 1869.

These two expeditions are generally considered to have covered the last large land area in the continental United States left unexplored by European-Americans.

Expedition Island was designated a National Historic Landmark on November 24, 1968.^[2][3]

References

1. ^ "National Register Information System". National Register of Historic Places. National Park Service. 2007-01-23. http://nrhp.focus.nps.gov/natreg/docs/All_Data.html. 
2. ^ ^{a b} "Expedition Island". National Historic Landmark summary listing. National Park Service. http://tps.cr.nps.gov/nhl/detail.cfm?ResourceId=808&ResourceType=Site. Retrieved 2007-10-20. 
3. ^ Stephen Lissandrello (January 3, 1976). National Register of Historic Places Inventory-Nomination: Expedition IslandPDF (288 KiB). National Park Service  and Accompanying 5 photos, from 1975 and c.1900.PDF (824 KiB)

External links

• Expedition Island National Historic Landmark
• Green River City Parks: Expedition Island
• National Historic Landmarks Program: Expedition Island