Activities - Adventure - GeoCaching #11. GeoCache, Rock Island August 12, 2014 - By Mountain Junkie GeoCache 11. Leavenworth, Rock Island – N 47° 36′ 26″ W 120° 54′ 59″ – 3.5 Star, Hike, Walk, or Swim to your destination Medium Round Container Ready, Set, Seek… Help Us by Donating Today…