Sacramento National Wildlife Refuge Complex
Pacific Southwest Region

Mystery Geocaching

Come explore the Sacramento NWR Complex by combining nature and technology on our high-tech scavenger hunt!
Sacramento NWR 2008 YCC Crew solving the Mystery Cache, photo: USFWS

Mystery Geocaching is a high-tech family-friendly scavenger hunt that employs a hand-held Global Positioning System (GPS) unit. The clue sheets and your GPS unit will lead you to specific locations on the Refuge Complex, from there you will complete a task. This does not involve finding or leaving a cache (which is prohibited on wildlife refuges), but there is a final log book and cache waiting for you near the Complex visitor center once you have solved the cache! Our caches and more information about geocaching can be found on geocaching.com. Once you log on to the site you can search for our geocaches using the cache ID numbers: Sensing Nature Geocache is GC1GKR0 and Nature's Mystery Geocache is GC1GKV3.

How to solve the Sensing Nature Geocache!

  • This geocache will challenge you to use all of your senses to explore the Sacramento NWR.
  • Complete the tasks on the clue sheet (pdf, 14 KB).
  • Keep in mind that wildlife comes first on refuges, so please follow all rules and regulations.
  • Remember, there are no hidden caches at these locations and leaving a cache on a wildlife refuge is prohibited.
  • Once you have completed the five tasks, search for the cache near the public entrance to the Sacramento NWR Visitor Center (N 39°25.780 W 122°11.173) to sign the final log book and claim your cache!

How to solve the Nature's Mystery Geocache!

  • This geocache is Complex wide and is about a 100-mile loop to find all of the cache locations, so transportation is a necessity.
  • Complete the tasks on the clue sheet (pdf, 19 KB).
  • Keep in mind that wildlife comes first on refuges, so please follow all rules and regulations.
  • Remember, there are no hidden caches at these locations and leaving a cache on a wildlife refuge is prohibited.
  • Once you have completed at least seven of the 10 tasks, search for the cache near the public entrance to the Sacramento NWR Visitor Center (N 39°25.780 W 122°11.173) to sign the final log book and claim your cache!

What You'll Need in Your Detective Case:

  • Transportation
  • GPS Unit
  • The corresponding clue sheet
  • Pencil or pen to record your answers
  • Camera to capture your memories, plus send us pictures completing the tasks and we'll put you on our Web site!

New to Geocaching?
Don't worry if you haven't caught onto the geocaching trend yet; we have a Garmin eTrex available to loan at the Visitor Center for the Sensing Nature Geocache, as well as, directions on how to mystery geocache (pdf, 306 KB) with the unit. You can solve our Nature's Mystery Geocache without a GPS unit by using the clue sheet and a Sacramento NWR Complex Map (pdf, 699 KB).

For more information, contact Jennifer Stockton at (530) 934-2801.

Sacramento NWR Complex
752 County Rd. 99W, Willows, CA 95988
Phone: (530) 934-2801; Fax: (530) 934-7814
24-hour Information: (530) 934-7774
TTY: (530) 934-7135

Last updated: January 18, 2009