Idaho Gemstones by County
Gemstone information is available for the following counties. Information comes from Gemstones of Idaho written by Alice Allebaugh. Reference: Idaho Lands website (I'm reposting here because data has a way of disppearring…
Gemstone Guide for Idaho
This information comes Department of Lands website. I'm reposting here because data has a way of disppearring off the internet. (Reference: Information comes from Gemstones of Idaho written by Alice Allebaugh.)…
US Mines listed rhyolite flows
Rhyolitic flows can have high concentrations of fluorine gas dissolved in the lava which allows the rhyolite to become more fluid. Fluorine gas is a key component in the formation…
Silver Mines of Southwestern Idaho
From The principles of economic geology By William Harvey Emmons (page 248) Gold-silver-adularia Veins.—The gold-silver veins of De Lamar and Silver City, Idaho, are post-Miocene deposits that were formed very…
Idaho Hot Springs
Hot Springs SpreadSheet (this data is included in DRC 2.0) State Coordinates Spring Name Temperature LAT LONG F C ID 42.986 111.743 BLACKFOOT RIVER WARM SPRING 79 26 ID 42.928…