Triforce Team

I think many or most benchmarks carry a warning that tampering with monuments is a punishable offence. This should be enough to discorage most vandalism. There are probably more benchmarks destroyed by construction of new roads, etc. than by individual goofballs. Overall, you are more likely to benefit from others looking for these benchmarks. If you need to find one, you can now look to see if anyone else has found it. If it no longer exists, you will not have wasted your time. I notice that in the past, the US Power Squadron has gone out looking for benchmarks to see if they still exist. What's the difference if Joe Public wants to do it too?

Sure its legit - why wouldn't it be? Sometimes more prominent/permanet and historic structures are used as benchmarks because they are less likely to be disturbed. I have often gone looking for what I thought would be an easy to find benchmark, only to discover that a new development or road construction has obliterated it. This is less likely to happen with something like a church spire.

If I wanted to get a geocache into space, I would first try to get it to a cache somewhere near the Johnson Space Center. Since that is where the astronauts train, maybe an astronaut or someone who works at NASA could get it too them. Here is an aptly named nearby cache to NASA http://www.geocaching.com/seek/cache_details.aspx?ID=2190

Sounds like an interesting idea. The cache should probably contain all books of a certain type maybe i.e. same subject or author, mystery books, science fiction, etc. Don't necessarily see why a book cache would necessarily need to have anything to do with bookcrossing.com.