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In 2007 Save Mount Diablo published Mount Diablo, Los Vaqueros & Surrounding Parks, Featuring the Diablo Trail, the most accurate and up-to-date map of Mount Diablo's more than 90,000 acres (36,000 ha) of protected lands. It includes 100 access points, 520 miles (840 km) of trail, and 400 miles (640 km) of private fire roads.
The Mount Diablo Meridian, established in 1851, is a principal meridian extending north and south from its initial point atop Mount Diablo in California at W 121° 54.845. Established under the U.S. Public Land Survey System , it is used to describe lands in most of northern California and all of Nevada . [ 1 ]
Mount Diablo Creek is a 14.3-mile-long (23.0 km) [2] northwest-flowing stream originating on the north flank of Mount Diablo.Its dozen small tributaries gather near Clayton before flowing through Concord and the Concord Naval Weapons Station, ultimately ending in tidelands on the southern shore of Suisun Bay in Contra Costa County.
Figure 1. This BLM map depicts the principal meridians and baselines used for surveying states (colored) in the PLSS.. The following are the principal and guide meridians and base lines of the United States, with the year established and a brief summary of what areas' land surveys are based on each.
On USGS maps, the "Diablo Range" is shown as the ridgeline which runs between its namesake Mount Diablo southeastward past Mount Hamilton. However, the USGS Geographic Names Information System (GNIS) includes the East Bay Hills in its list of various GPS coordinates for the Diablo Range.
The area became known as the Mount Diablo Coalfield, the largest in California, producing more than 400 million short tons (357 million long tons) of coal during this time. [12] The area includes the remains of twelve coal mines and the sites of several long-gone coal mining towns. The Preserve contains over 200 miles (320 km) of mine workings.
Of the most prominent summits of California, only Mount Whitney exceeds 3000 meters (9843 feet) of topographic prominence. Five peaks exceed 2000 meters (6562 feet), nine peaks are ultra-prominent summits with more than 1500 meters (4921 feet), and 35 peaks exceed 1000 meters (3281 feet) of topographic prominence.
University of Nevada, Reno. Archived from the original (Background and maps of the San Bernardino and Mt. Diablo meridians) on 2012-10-18; Michael A. Duffy, PLS. "Three Monuments, One Initial Point" (Published in the September 2002 Issue #135 of the California Surveyor). Mount Diablo Surveyors Historical Society