RT @Sierra_Magazine On this day in 1892: Aided by profs from @Stanford & UC Berkeley, preservationist John Muir founded the Sierra Club
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
RT @Sierra_Magazine On this day in 1892: Aided by profs from @Stanford & UC Berkeley, preservationist John Muir founded the Sierra Club