Nice pics.

I have always wanted to go into the field with a flexible temperature probe to measure exact temps underground and in cracks. Because the problem with pointing a gun deep into a crack is that it is averaging the warmer temps up front with the cooler deeper readings.

I have messed around with this a little bit in new england but the soil their is soaked and I feel like the ground might have different thermal properties than in the desert. I wonder how far back into a crevice you have to go to reach a completely stable year round temp.

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