1959 - Surveyor finds original wood post in mound. He replaces with 2" iron pipe with wood plug and tag and rebuilds the mound.
2008 - I find the stone mound on the side of very steep ravine (head of creek). Iron Pipe with rotted wood plug (with tag still in it) laying on its side on top of the stone mound. I'm not sure what happened. I don't think if fell over like that, maybe someone found it down the hill and brought it up and layed it there. I find two Redwood trees for 1959 BTs. One has been struck by lightning but there is the top of a possible blaze above the burned out area. The other BT is just a 16d nail in the bark, no blaze. They fit bearing and distance from the stone mound.
I have found every 1959 1/2" iron pipe I looked for on our boundary and a few extras which made the local property owners happy when they have me find a corner for free (generally I do that for verification or to help find one I really need).