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The Colorado River hydrologic region of California is one of the 10 major hydrologic regions of the state as identified by the California Department of Water Resources. The Colorado River hydrologic region has a surface area of about 20,000 sq mi (52,000 km 2 ), and includes all of Imperial County , and portions of Riverside , San Bernardino ...
California region, with its 10 4-digit subregion hydrologic unit boundaries. The California water resource region is one of 21 major geographic areas, or regions, in the first level of classification used by the United States Geological Survey in the United States hydrologic unit system, which is used to divide and sub-divide the United States into successively smaller hydrologic units.
Copper Creek (also called the Copper River, natively called Chwuloq'e, for chinook salmon) is a southern tributary of the Klamath River in the U.S. state of California. Arising in the Klamath Mountains , the creek drains a narrow watershed of about 120 square miles (310 km 2 ).
The town went through boom periods during the two World Wars, when demand for copper went up again. By the time the mines closed in 1946, according to the U.S. Bureau of Mines, they had produced 72,598,883 pounds of copper worth over $12 million (equivalent to $193,000,000 in 2024). No copper mining has been done since.
California aquifers, excerpted from map in Ground Water Atlas of the United States (USGS, 2000): Lavender is "other" for "rocks that generally yield less than 10 gal/min to wells"; dark green-blue (3) are the California coastal basin aquifers, bright-turquoise blue (7) is the Central Valley aquifer system, flat cobalt-blue (1) down south is Basin and Range aquifers
According to the Boswell map, the Hansens’ land was in an area of the basin called the Southeast Lakebed. It was depicted as one of the lowest-elevation areas in the region. “That Southeast ...
The Old Spanish Trail and the later wagon road called the Old Mormon Road or Salt Lake Road, ran through the south end of Amargosa Valley, passing from Resting Springs, east of present-day Tecopa, 7 miles to Willow Spring on the east bank of the canyon of the Amargosa River (then called Saleratus Creek), below Tecopa and above the mouth of ...
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