I’ve found a few original stones in my time as a surveyor, but I can’t say I’ve ever found a stone squid fossil as a monument. Here’s a guy in Spring Valley, Minnesota, who discovered a stone squid fossil that was set as property corner. Yes, that’s right — a squid fossil. According to Richard Walter, the Houston County Surveyor, the fossil is believed to have been set to perpetuate the original wooden post, which was set in 1853 to mark a quarter corner.
I’m trying to imagine my reaction if I’d been pulling plats at a local Surveyor’s office and saw a description that went something like this: “Found 8-inch stone squid fossil, down 0.7 feet.”