Newton has mounted ballets for many other companies and has staged his own production of Swan Lake, Act III for the Pennsylvania Ballet. He retired from The Royal Ballet in 2001 and now works internationally as a freelance teacher, mainly staging the Ashton repertory.ewton has mounted ballets for many other companies and has staged his own production of Swan Lake, Act III for the Pennsylvania Ballet. He retired from The Royal Ballet in 2001 and now works internationally as a freelance teacher, mainly staging the Ashton repertory.
Silver mining in Colorado. Silver mining in Colorado has taken place since the 1860s. In the past, Colorado called itself the Silver state. (Nevada also calls itself the Silver state. Idaho, however, actually produces the most silver in the US.)
The discovery of gold caused the Idaho territory to be established in 1863. As the gold deposits began to disappear, the search for other minerals began. By the late 1800s silver, lead and zinc deposits were uncovered in the Coeur d'Alene area. This area has become known as one of the world's richest mineral areas.