Maybe they didn't find anything. Yep some days are futile in the creek but I would consider it good one on one time with nature. I got to spend a little time in my creek yesterday evening and was filling up a bucket with pebbles to sift later when someone shot a shotgun and scared the crap outta me, which is rare to hear it that close, thinking my neighbor's grandson is shooting pawpaw's shotgun and hoping they aren't shooting my way, even though over the weekend they shot my way cause I heard the shot in the trees above my head. Guessing I'll call her today and ask her to make sure he's shooting the other way lol. Love the shards you find and hoping you find more flint next time you're out!