For all you tri-staters out there, there's now a really cool web site devoted to the hobby.
It's "Corner-Corner" at
Among its tidbits:
Jack Parsell's Tri-State book available for free download in pdf format (4.7MB). Jack who created the wonderful world of highpoints and trip-state markers has graciously permited this to be placed into the domain.
While Jack is nice to do this you can still buy his book at:
Price $7.50 including S&H
Box 97/1892 Main Street
Beaver Falls, NY 13305
The site has links and photos to US/Canada Tri-Points
Trip Reports from Several U.S. Tri-Points
Links to a group visiting international tri-points (mostly in Europe)
Topozone Links and information for the corners of each state.
And for good measure I've posted my own tri-state page with topozone maps: