Hello Dr. Hester, I was reading your Texas Artifacts book about lithic sources in Texas. It suggested Banks 1990 as the best source. I tried finding it ($500 on Amazon, apparently out of print for many years). I read your posts and photos on Texas Beyond History, and they are very good. I live in San Angelo, and the Antlers Formation is mentioned as being here. What does that chert look like? Also, are you familiar with a very pretty mottled chert that seems to be very common in Coke Co. near Robert Lee? Does that chert have a name? We find it in mottled combinations of white, gray, blue, orange, and tan. (Some combinations resemble Boone Chert from Oklahoma and Missouri). Thank you in advance. Paul Kinyon San Angelo

I already got an email from Dr. Hester. More info on the way. Wow!