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 1859 Comstock Lode discovery opened the era of silver mining in Nevada, and attracted thousands of minersâmost from California. It was discovered by James Finney in Carson County.