Venkatesh Rao@vgrUmm. How? I want to believe...Quote TweetUS Department of the Interior@Interior·Apr 22, 2015Every dollar invested in @NatlParkService returns $10 to US economy. RT to spread the word!5:08 PM · Apr 22, 20151 Retweet2 Likes
US Department of the Interior@Interior·Apr 22, 2015Replying to @_Leviathn@AdmiralLeviathn @vgr It's based on visitor spending, including travel & tourism: http://nature.nps.gov/socialscience/vse.cfm…23