Our creek pops up the most random weird things! So for my Mother's Day hunt I came back with half an animal tooth, half of something that could do some serious cutting, a mini canoe, and an ancient bow tie. What in the world!
Sometimes flint will tumble like the other cobbles and break. Sometimes those breaks can look like they have been worked. You get out in your creek enough and you will be able to tell the difference between a natural break and a artifact. It just takes time. Keep looking they are there