My friend and I found these about 55 miles due West of the far West side of Houston, TX. We are still looking for more at the location so I am being vague about the exact spot. Sorry about that. They weren't very deep in the ground and were found while digging a pond eight feet or so under the surface and the soil is sandy mixed with, clay, and bull rock. This is the only picture I have of what we found and I know it is hard to tell how large these things are but that bone fossil in the right corner is probably 24-30 inches long. I think this is mammoth teeth fossils and mammoth bone fossils but I'm no expert. What do you guys and gals think? Whatever this is its pretty cool to us since neither of us has ever searched for fossils before. We're hooked on it now!