Well I hope everyone knows about Geocaching. It is so similar to
letterboxing. Everyone should pick up a cheap GPS and give it a try.

But maybe you do not know about the County Highpointers!! These are a
splinter sub group of the Highpointers Club

see http://highpointers.org/

The County Highpointers have a group discussion here on Yahoo Groups as

http://groups.yahoo.com/group/cohp/

Basicaly you travel to the highest point in each county. It is very
interesting to see the little towns in the area of each county
highpoint. Everything is so unique and a small town (many times).

Tsunami Kev