Still going, and we can call the guy keeping it going by his public records name - Fred Eshelman, pharma wealthy North Carolinian owns the notoriously checkerboarded Elk Mountain in Wy, which if you ever drive I80 past Laramie Wy it’s the big mountain on the south side going west.

owns 6000 acres of checkerboard land that’s effectively 20,000 acres with a notorious ranch manager.

Lost his case in Fed courts in Wyoming and on appeal, trying to do Supreme Court now.

Wyofile has consistently good coverage on this.

Sometimes the checkerboarding is the result of indian reservation agreements. For example, Palm Springs is technically like this.