This is a two-stage multi in Colt State Park, and the fifth edition in a puzzle series started by RIclimber a few years ago.
Locate stage one, complete the obvious task inside of the container there, and head for the final, which is a regular sized purple lock-n-lock.
Please put all the "pieces" back inside stage one so the next finder can have the same experience you did. Rehide both stages as you found, and make sure they are well covered. Hope you enjoy.