Members Only Content
The 2016 convention team appreciates your help promoting the National Speleological Society! We have prepared some web banners that may be used by any internal organizations of the society to support the 75th anniversary celebration in July of 2016.
If your region or grotto maintains a website, please consider linking to our convention site using these graphics. You'll have to log in to see them and download the code though - this material is only meant to be used on websites representing the society's many internal organizations.
A few clouds. Lows overnight in the mid 30s.
Mostly clear. Low around 35F. Winds SSE at 5 to 10 mph.
Sunny. High 77F. Winds ENE at 5 to 10 mph.
Last updated on
Sun, 28-May 6:45 pm
With more than 120 mines, Nevada is one of the country's major producers of turquoise. Most is found as nuggets, fracture fillings and in breccias as the cement filling interstices between fragments. Some of this unusually coloured turquoise may contain significant zinc and iron, which is the cause of the beautiful bright green to yellow-green shades.
Major turquoise deposits in Nevada occur along a wide belt of tectonic activity that coincides with the state's zone of thrust faulting. It strikes about N15°E and extends from the northern part of Elko County, southward down to the California border southwest of Tonopah.