Duh, I should have looked at your handle. Lots of quartzite in your region along with todays Silica production, gotta have them beer bottles. I'm by no means an expert, but I do know how to find artifacts in the mountains at least. Based on my book references I'm going out on a limb here and say it is of the woodland period, early, middle, late I can't say. Hopefully more knowledgeable folks will chime in and give their advice. After you find the first one it only gets better from here on out if you keep at it. Good job and happy hunting!