Welcome to Devils Tower KOA, in the shadow of Devils Tower, Americas's First National Monument and filming site of the movie "Close Encounters Of The Third Kind".Ellen Driskill opened the KOA in 1979 on the exact filming site of the movie "Close Encounters OF The Third Kind. Ogden and Zannie Driskill are excited to carry on her legacy. They have been involved with the KOA and Devils Tower Tourism for over 35 years. They raised their three children, Andrea, Katerie, and Lincoln on the historical Campstool Ranch. The grown children are the 6th generation on the family ranch and now there is a 7th generation started. The Driskill family welcomes you to Devils Tower!