I believe there was about 35 feet of topsoil in bison country before they were eradicated.
See also Geoff Lawton’s “Greening the Desert.” youtu.be/sohI6vnWZmk
See also Geoff Lawton’s “Greening the Desert.” https://youtu.be/sohI6vnWZmk?si=C4ava71x7-iw8276
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I believe there was about 35 feet of topsoil in bison country before they were eradicated.
See also Geoff Lawton’s “Greening the Desert.” https://youtu.be/sohI6vnWZmk?si=C4ava71x7-iw8276