Simple caches...not all are the same. We'll give you a hint for some, but not all. Remember this, none will bite you, although maybe scare you...lol.
These are on those straight valley roads. People drive them fast! There is a pull off near each one, but slow down and signal as you approach it and cross the road safely, if you need to.
Only a couple caches are large enough to trade items...one is for children...the other is caches you may take or exchange until they run out.