47 focus areas match these criteria.
| Focus area | Region | States | Mineral Systems | Deposit types | Commodities |
|---|---|---|---|---|---|
| American River Placers | Northwest | California | Placer | Gold; PGE | gold |
| California Coast Ranges graphite | Northwest | California; Oregon | Metamorphic | Graphite (coal or carbonaceous sed) | (none) |
| California Coast Ranges massive sulfide | Northwest | California; Oregon; Washington | Volcanogenic seafloor | Copper-zinc sulfide; Manganese oxide (layers, crusts, nodules); Polymetallic sulfide; Zinc-copper sulfide | copper; gold; lead; silver |
| California Coast Ranges serpentinite magnesite belt | Northwest | California | Meteoric recharge | Cryptocrystalline magnesite | (none) |
| California Coastal Ranges chromite | Northwest | California | Mafic magmatic | Chromite | (none) |
| California Sierra Nevada peridotite magnesite belt | Northwest | California | Meteoric recharge | Cryptocrystalline magnesite | (none) |
| California-Oregon laterites | Northwest | California; Oregon | Chemical weathering | Nickel-cobalt laterite | (none) |
| Klamath Mountains chromite | Northwest | California; Oregon | Mafic magmatic | Chromite | (none) |
| Klamath Mountains barite | Northwest | California | Basin brine path | Barite (replacement and bedded) | (none) |
| Klamath River Placers | Northwest | California | Placer | Gold; PGE | gold |
| Nevada County Placers | Northwest | California | Placer | Gold; PGE | gold |
| North central California massive sulfide | Northwest | California | Volcanogenic seafloor | Barite; Copper-zinc sulfide | copper; gold; silver |
| Oregon Cyprus-type massive sulfide | Northwest | California; Oregon | Volcanogenic seafloor | Copper-zinc sulfide; Polymetallic sulfide; Zinc-copper sulfide | copper; gold; lead; silver |
| Sierra Nevada Foothills barite | Northwest | California | Basin brine path | Barite (replacement and bedded) | (none) |
| Sierra Nevada foothills chromite | Northwest | California | Mafic magmatic | Chromite | (none) |
| Sierra Nevada foothills massive sulfide | Northwest | California | Volcanogenic seafloor | Copper-zinc sulfide; Manganese oxide (layers, crusts, nodules); Polymetallic sulfide; Zinc-copper sulfide | copper; gold; silver |
| Trinity County Placers | Northwest | California | Placer | Gold; PGE | gold |
| Yuba River Placer District | Northwest | California | Placer | Gold; PGE | gold |
| Birch Creek | Southwest | California | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT | copper; gold; lead; silver |
| Cal Blue Mine | Southwest | California | Porphyry Sn (granite-related) | Pegmatite LCT | (none) |
| California lithium and potash | Southwest | California; Nevada | Lacustrine evaporite | Lithium clay; Residual brine | borax; boric acid; bromine; iodine; salt; soda ash; sodium sulfate |
| Central and southern California graphite | Southwest | California | Metamorphic | Graphite (coal or carbonaceous sed) | (none) |
| Clayton Valley-Rhyolite Ridge lithium | Southwest | California; Nevada | Lacustrine evaporite | Lithium clay; Residual brine | borax; boric acid; bromine; iodine; salt; soda ash; sodium sulfate |
| Coast Ranges | Southwest | California | Meteoric convection | Low sulfidation epithermal gold-silver | gold; lead; mercury; silver |
| Eastern California tungsten | Southwest | California; Nevada | Porphyry Cu-Mo-Au | S-R-V tungsten; Polymetallic sulfide S-R-V-IS | cadmium; copper; gold; lead; silver; zinc |
| Friday Mine | Southwest | California | Mafic magmatic | Nickel-copper-PGE sulfide | copper; gold; selenium; silver |
| Great Basin West VMS | Southwest | California; Nevada; Oregon | Volcanogenic seafloor | Copper-zinc sulfide; Polymetallic sulfide; Zinc-copper sulfide | copper; gold; silver |
| Jurassic Arc | Southwest | California; Nevada | IOA-IOCG | Iron oxide apatite; Iron oxide copper gold | copper; gold; iron; silver; uranium |
| Klamath Mountains orogenic Au | Southwest | California; Oregon | Orogenic | Gold | gold; silver |
| Lower Colorado River IOCG | Southwest | Arizona; California | IOA-IOCG | Iron oxide copper gold; Skarn iron | copper; gold; iron; phosphorus; selenium; uranium |
| Middle-Late Miocene Phosphate | Southwest | California | Marine chemocline | Phosphate | phosphate; uranium |
| Mountain Pass | Southwest | California; Nevada | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; uranium; vermiculite |
| Music Valley | Southwest | California | Metamorphic | Gneiss REE (monazite, xenotime) | thorium; uranium; yttrium |
| Nevada lithium | Southwest | California; Nevada; Oregon | Lacustrine evaporite | Lithium clay; Residual brine | borax; boric acid; bromine; iodine; salt; soda ash; sodium sulfate |
| Peninsular Ranges pegmatites | Southwest | California | Porphyry Sn (granite-related) | Pegmatite LCT | boron |
| Salton Trough lithium and potash | Southwest | California | Lacustrine evaporite | Residual brine | borax; boric acid; bromine; gold; iodine; silver |
| San Gabriel Mountains anorthosite | Southwest | California | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |
| Sierra Nevada Foothills | Southwest | California | Orogenic | Antimony | copper; gold; lead; silver |
| Sierra Nevada foothills orogenic Au | Southwest | California | Orogenic | Gold | gold; silver |
| Southeast Mojave Desert | Southwest | California | Orogenic | Antimony | copper; gold; lead; silver |
| Southern California magnesite | Southwest | California | Marine evaporite | Sedimentary magnesite | (none) |
| Southern California tungsten placers | Southwest | California | Placer | Gold; Wolframite/scheelite | gold |
| Western Great Basin Porphyry Copper | Southwest | California; Nevada | Porphyry Cu-Mo-Au | Distal disseminated silver-gold; High sulfidation gold-silver; Lithocap alunite; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper; Porphyry/skarn molybdenum; Skarn iron | cadmium; copper; gold; lead; molybdenum; silver; uranium |
| Mount Baldy mining district | Southwest | California | Placer | Wolframite/scheelite | (none) |
| Mount Baldy mining district | Southwest | California | Porphyry Cu-Mo-Au | S-R-V tungsten | (none) |
| Gorman tin district | Southwest | California | Placer | Cassiterite | (none) |
| Gorman tin district | Southwest | California | Porphyry Sn (granite-related) | Polymetallic sulfide S-R-V-IS | copper; gold; iron; lead; molybdenum; silver |