Stanford student retracing John Muir's landmark walk to Yosemite: http://bit.ly/QQ4Tk | Follow his blog at http://muirwalk.blogspot.com
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
Stanford student retracing John Muir's landmark walk to Yosemite: http://bit.ly/QQ4Tk | Follow his blog at http://muirwalk.blogspot.com