The maps did not show any names for the hill with prospecting pits and I was told that it's situated on Butler Ranch on the south side of Baker Ranch, so it's referred as just "Butler Hill" for now. The hill is enriched in rhyolite lava flows with several small and scattered pockets of thundreggs. The quality thundereggs containing colorful agate cores are few in numbers and sparsely scattered widely over the hill.  That makes it tough to search for them among the numerous duds even there are some hints of  pockets hidden underground. Pete Ghitney already located and mined one pocket referred as "Blue Star" but turned out to be a bust in commercial sense.
    Most agates found there are gray to white often with white to orange inclusions and few came out with bright red, orange, yellow and purple colors and it's possible to find few that rival the Mexican agates. The Geode-centered thundereggs are quite common.

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