This cache is hidden near the intersection of 6th Avenue Parkway and Monaco Parkway in Denver. It's a huge cylindrical cache with a pen included and lots of stuff to swap out. Shouldn't be too hard. Hide it even better when you're done.
Many more driving muggles on the parkway than walking muggles, so a little stealth may be necessary.
There is a LOT of stuff in this cache. FTF can have any two items of their choice. Be sure to number and date the log entries.
Good luck and good caching!
UPDATE: Congrats to Edwards654 for FTF!