7865 North Overfield Road, Casa Grande, Arizona, United States
Just south of the NAU campus at Central Arizona College sits a gas station with a sign that reads "Stop By". Neighboring the gas station on the south side, sits the remnants of a farm and cabin. Do not try to park in the gas station parking lot. The barn is completely fallen in so do not try to go inside. The cabin is quickly becoming too dilapidated to enter as well, especially given the large amount of bees who live there primarily in the summer. This location has no real name or address and is definitely one you would miss if you weren't looking. Put the address in Google Maps and zoom in with the satellite view to see it's exact location.
16265 E Peak Ln, Picacho, Arizona, United States
This another one with no real address, but Nickerson Farms and the Picacho Peak Trading Post ruins are located on the south side of Interstate 10, at exit 219. This is the Picacho Peak exit, not the exit for Picacho, a community a few miles away. 32°38'43.2"N 111°23'35.2"W 32.645328, -111.393098
2275 West Golden Hills Road, Tucson, Arizona, United States