Stand in three states at once! To do this, find this tri-state marker located at the exact point where Texas, Oklahoma, and New Mexico meet.
In order to successfully claim this cache, take a picture of you and your team with your GPS at the tri-state marker and upload it to your log entry.
If you don't have a camera, you can verify that you have visited this cache by going to the Kidder Astronomical Station, about 200 yards to the WNW at N 36° 30' W 103°, and recording the year that it was set. Send me the answer to Ken.Akerman@outlook.com or via the Geocaching messaging system (See this log entry by TuristaJ for example). Thank you to texas_panhandler for sending me a picture of this marker (I edited the picture to cut out the year).