The Borax Lake site is located near the community of Clearlake, in the of northern California near . The site is deflated surface site and quarry, with cultural deposits reaching a depth of more than 10 feet (3.0 m). The stratigraphy of the site suggests repeated occupation of the area across a long time period, from about 12,000 to present day. Important finds include fashioned out of , which was probabl.
[pdf] In the late 19th century, a mining company called Rose Valley Borax bought the springs and the land around it. The borax salts emanating from the springs had collected on the surface and formed a low dome a 1 mile (1.6 km) across. The company mined the borax for about 10 years. Wagons pulled by mule teams delivered the borax to a railway terminal in . Ruins of bui.
[pdf] The Boyles C5/C5C surface core drilling rig is compact, yet powerful. Its compact design makes it easy to position and transport, even by helicopter. During helicopter transport, the rig is broken down into six main modules and each module is equipped with lifting points to ensure safe and effective transport. Boyles. .
The Christensen range of surface core drilling rigs has, over many years, established itself a reputation for reliability and ease of use.. .
For underground core drilling exploration tasks, Epiroc offers the well-established and trusted Diamec range of machines. Diamec rigs are available in a wide variety of forms. The.
[pdf] 
