This is a letterbox hybrid cache. The container you are seeking is an ammo box. At its placement, the cache contained a logbook, a rubber stamp, a book for impressing your own rubber stamps, and a pen, none of which should be removed from the cache.
The swag includes A North American Indian Activity Book and a dozen or so rubber stamps that you may claim as your own provided you leave something in barter.
The cache is also a safe haven for travel bugs.
It is available specifically Tuesdays through Sundays from 10 a.m. to 4 p.m.
For those preferring a traditional letterbox with clues format instead of the GPS coordinates, click here.