Nice walk along the trail within the conservation area. Once near GZ, you'll have to leave the trail and do some minor bushwhacking, mostly consisting of the short tree branches that you have to weave around to get to the cache.
This is listed as an "other" but it is basically a micro, shiny, bronze bison tube. Roll the log and baggie up and insert the baggie in the cap and then screw the bottom half onto the cap. Thats how all these bison caches work best.