Rattlesnake Mountain Public Access Act of 2010 - Directs the Secretary of the Interior to provide access to the summit of Rattlesnake Mountain in the Hanford Reach National Monument in the state of Washington for educational, recreational, historical, scientific, cultural, and other purposes.
Authorizes the Secretary to enter into cooperative agreements to facilitate access to the summit of Rattlesnake Mountain for guided tours, including motorized tours, and to maintain the access road to the summit.