
This is a really great soil, by the way, grows big Douglas Fir and has volcanic ash in the upper part. I thought I had to leave all my Andisols behind in the northwest, and lo and behold they are appearing here in the Sierras. Leftovers from the volcanic activity near the top of Sonora Pass, I assume. the tape is in cm and meters by the way, and I go to a meter and a half or 2 meters if the bedrock doesn't stop me as it did in this pit.
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