These eight views of petroglyphs and modern graffiti, shot between 1963 and 1980, illustrate that not everything at a petroglyph site has their origins in the far past. Here an old turkey track type petroglyph, first recorded in 1947, shares space with more recent additions. The site sits near a heavily used trail and receives periodic additions from modern artists. Archeologists use style and subject matter in addition to weathered appearance to sort the old from the new.
![]()
