April 2005 by Edgar B. Heylmun, PhDA pediment is a broad, gently sloping erosion surface or plain of low relief that is often found in arid and semi-arid regions at the base of a receding mountain front. The example shown is from the Palo Verde Ranch 15-minute topographic quadrangle, southwest of Tucson, Arizona. This is one of the best examples the writer has ever seen.
In order to see what geologic maps can do, we need to think about what we are looking for.
Nome had its second gold heist in as many weeks October 1st and the victims of both thefts are offering a $10,000 reward for information...
Without this versatile group of technologies, we would be hard-pressed to produce the metals so critical to our modern way of life. The robust mining industry of today would literally not exist.
• House members "earn" another raise
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Prospectors looking for the next Comstock Lode tried mining for silver in the Benton Hot Springs area in California in 1862. On a ridge southeast of the town, they found what they were looking for—rich hornsilver.
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