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It helps to know what is going on underground when looking for geological patters. Hot springs are of course geothermally heated by pockets of magma in the crust that are relatively close to the surface. Understanding the underlaying strata and ground water patters are essential to accurately predicting where hydraulic phenomena will appear. At the very ...


Walk the line on a humid very cold still morning. If the hot spring is of any significance -- e.g. enough surface to get in, and enough flow to be hot, -- you should get a plume of steam rising off the water. This will likely require an air water temperature differential of at least 40 degrees F to be visible. I have seen 'steam' (fog) tendrils off of ...

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