I grew up in the NE part of the San Antonio area. We used to do the same thing around the area where the Live Oak Civic Center now sits. It wasn't hard to find spearheads, arrowheads & other tools. If you put effort into it you could come up with some nice ones. Good times.Wow, that is awesome! Which part of San Antonio did you find that at? When I was a kid we used to go arrowhead hunting in the woods just south of Thunderbird Hills between Loop 410, Culebra, and Oak Hill Rd., and we never came out of there with less than two or three each time. Brings back memories....