There have been a number of controversial bills and laws lately, some of which have been pulled or vetoed after protests from photographers and the
via PetaPixel: http://petapixel.com/2015/05/13/photographers-wary-of-new-wyoming-law-against-data-collecting-in-open-land/
University of Denver law professor Justin Pidot writes that the law was pushed forward by the powerful ranching community in Wyoming, which wants to hush up the fact that many streams in the state are contaminated by E. coli from grazing cows