Formed 25 million years ago and involving violent steam-blast eruptions caused by magma pressure deep within the earth, the Superstition Mountains are a collapsed volcanic caldera. Several gold ...
Edward Schieffelin, one of Arizona’s most famed prospectors was born in Tioga County, Pennsylvania, in 1847. Schieffelin’s penchant for prospecting began in the Pacific Northwest in 1864. A decade ...
Within each content area, there are one or more tutorials. Each tutorial consists of lessons. Each lesson should be a page detailing the concept being taught, along with sample code. Lesson and page ...
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