8 Slipform stone walls. Seems to me these were on the edge of the Mojave somewhere; I drove the car as close as I could, but still had to walk a fair ways. Sandy place, like a beach. This was part of a mining operation. 9 10 A stone bench, slipform style. This photo is from the Natural Building Colloquium - East section. 11 This wasn't far from the slipformed mining building above. 12 13 This old stonework is at Sundial Village in Rico, Colorado; I'm not sure what it was. Keith Lindauer told me, but I forgot. Maybe it's an old kiln. This photo is from the Colorado Natural Building Workshop section.

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