Went on another run today and found a little. Most of the stuff today was gray, also some black that was really primo glassy looking and very little green. Jamie was right, a 2 pound hammer is not big enough to get the job done right. Ran into slabs that were a couple hundred pounds that I couldn't carry and could not break down. This is a spot I found by looking at clues. The first thing I did was locate Morrow mountain on a map. The next thing I did was to drive to areas outside the park. Step three was to look for streets or businesses with flint in the name. The final step was to look for cuts or new sub divisions going up. I don't know if this will always work but it worked for me.