History of Northwich were looking for coal, but instead discovered rock salt, in the grounds of the family home, Marbury Hall, to the north of Northwich. Soon salt mining started again. This mining area is now known as Dairy House Meadow. By 1732 the River Weaver was improved from Frodsham Bridge to Winsford Bridge and eventually allowed vessels up to to travel up to Northwich Bridge. This allowed salt to be transported by boat rather than cart. The Trent and Mersey Canal, opened in 1775, passed to the north of Northwich because of objections from the trustees of the Weaver Navigation. However, the
Arizona Mining and Mineral Museum Arizona Mining and Mineral Museum The Arizona Mining and Mineral Museum in Phoenix, Arizona, was a museum focused on minerals and mining. Last operated by the Arizona Historical Society, a state government agency, its exhibits included more than 3,000 minerals, rocks, fossils, and artifacts related to the mining industry. The museum closed in May 2011. In April 2017, legislation was passed to reopen the museum under the ownership of the University of Arizona. The museum was started in 1884 as a temporary exhibit at Arizona's first territorial fair. The exhibit was very popular and was moved into a permanent building