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Collection: Directories and Documents

Mineral Land Classification of Nevada County, California (1990) (235 pages)

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ae 57°30" fae; [30730 39°07°30") as mosatcked (som: Oregon House, Smartvitle, ese AGGREGATE RESOURCE AREAS WESTERN NEVADA COUNTY 4 Pike, North Bloomieta, Chicago Park, and Coltay U.S.G.S. 7,5' Topograpnic Quaoiangles, t io (Areas classified MRZ-2a or MRZ-2b for aggregate and deemed to be available for mining) EXPLANATION Property permitted for aggregate mining. . An Aggregate Resource Area (ARA) is an area that has been classified as MR2-2a or MR2-2b for construction ARA aggregate by the State Geologist and is deemed to be available for mining based upon criteria for by John Clinkenbeard Compatibility provided by the State Mining and Geology joard. SCALE . 48900 anes 0 ANMEOIATELY SIGNIFICANT All lands within Aggregate ©) Resource Areas which are currently permitted for aggregate mining. HIGHLY SIGNIFICANT Aggregate Resource Areas that contain in excess of 10 times threshold value * of material (based upon criteria established by the State Mining and Geology Board), or that are adjacent to permitted property. *# = o © ° SIGNIFICANT Al) remaining Aggregate Resource Areas 6) containing less than 10 times threshold value of PREPARED IN COMPLIANCE WITH THE SURFACE MINING AND RECLAMATION ACT OF 1975, ARTICLE 4, SECTION 2761 material (based upon criteria established by the State Mining and Geology Board). *# * Threshold value at the time of this report is approximately 9.7 million dollars or approximately 1.94 million tons of aggregate in the study area. LOCATION MAP ** If conditions warrant, an Aggregate Resource Area category can be changed from HS to S or from S to HS. STATE GEOLOGIST These conditions may include, but are not limited to, local scarcity of commodity, proximity to operating / aggregate mine, and distance from market areas. i Ss 5 . /