This is the Colorado instantiation of the Fifteen Wherigo. You can play this cartridge anywhere in the world as long as you start in the center of a 200 by 200 ft clear area.
The cartridge sets you up with a 3x3 magic square puzzle that you play in person. Pencil and paper may be useful.
Difficulty rating is partly for the puzzle and partly for the placement of the cache.
Listed coordinates lead you to an area more than large enough to play the game and within reasonable walking distance of the final. Dog-walkers may pass nearby, use good geo-steath at the final.
6/1/25: Coordinate offset - New final location is 12 feet SW of the cartridge solution. Subtract 0.002 from N and add 0.001 to W.
There are Wherigo caches in a number of other states that may be found using the same cartridge:
South Suburban park hours are 6:00 am to 11:00 pm.