Black Tusk Column Test

Had dug in a tent pit on a 30°ish south aspect so decided to run a quick column test. I'm new so bare with me. Fracture at 20cm down with 3 elbow taps. 2nd Fracture 28cm down with 3 shoulder taps (same weak layer). Poked around and got the following (top to bottom): 0-10cm = 1 finger 16cm= Pen 20-25cm = Fist 30-73cm = Pen 90cm = 4 fingers/knuckles