Aptly named, easy find.
"Mars Rover Collection Point"
This was a two-fer as it's in the same place as Picnic Paradise.
"New Hope Cache"
"Rock of Ages"
We finally found this one on my second try, Rich's third. Very clever. But GeorgiaGeoDude is always clever.
"Knock Me Out Cold"
A drive-by. Always nice after a day of bushwhacking!