I know for sure caliche does not have rocks, I used to build oil lease roads and pads in west texas. Here in Hill county they use chrushed limestone and it indead is rock as Brian H is refering too. Caliche is also limestone but not harden into stone. It is dug out of the ground and used as is, not necessary to run it thru a crusher.



The road goes on forever and the party nevers end...............................................