Anyone, on here into finding those little survey disks called benchmarks? There's a listing (database) of them all here:
http://www.geocach.../mark/default.aspx I randomly found one then discovered the database, never knew about them before, and now I'm hooked. Most are in boring locations like street curbs near storm drains, but I'm more into finding the hard to access ones. Like the other day I found 3 that have never been logged before, two from 1950 and one from 1959. The ones from 1950 where recovered and logged by NGS in 1960. So pretty cool no-one has bother looking for them, for at least 50yrs haha
Right now I'm trying to find one for every year so like 1920, 21, 22, 23, and so on... up to like 2000.