Stumbled upon a video on YouTube about a geocacher documenting the final 2 US states he’s geocached in. The video lasts for just under 10 minutes and is very well done.
The final 2 states are Nevada and New Mexico with a side visit to Geo Woodstock thrown in. I didn’t catch his name in the video but he mentions the 50th cache in New Mexico he was going to find so I looked it on Geocaching.com and found the cacher to be DavidMac. His log entry for the cache found in the 50th state is White’s City Madness (a.k.a. The Phantom Bathroom).
You can view the video at 50 States Geocached.