69 focus areas match these criteria.
| Focus area | Region | States | Mineral Systems | Deposit types | Commodities |
|---|---|---|---|---|---|
| Placer Au and PGE | Alaska | Alaska | Placer | Cassiterite; Gold; Ilmenite/rutile/leucoxene; Monazite/xenotime; PGE; Zircon | gold; thorium; yttrium |
| Placer Au and Ti | Alaska | Alaska | Placer | Cassiterite; Gold; Ilmenite/rutile/leucoxene; Monazite/xenotime; PGE; Zircon | gold; thorium; yttrium |
| Placer PGE and Au | Alaska | Alaska | Placer | Cassiterite; Gold; Ilmenite/rutile/leucoxene; Monazite/xenotime; PGE; Zircon | gold; thorium; yttrium |
| Hawaii bauxite | Hawaii | Hawaii | Chemical weathering | Bauxite | (none) |
| Elk Creek carbonatite | North Central | Nebraska | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; vermiculite; uranium; yttrium |
| Elk Creek region | North Central | Kansas; Nebraska | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; vermiculite; uranium; yttrium |
| Midcontinent Rift layered Ti-Fe in the Duluth Complex | North Central | Minnesota | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |
| Midcontinent Rift mafic-ultramafic satellite intrusions | North Central | Michigan; Wisconsin | Mafic magmatic | Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; phosphorus; selenium; silver |
| Midcontinent Rift oxide-ultramafic intrusions (OUIs) | North Central | Minnesota | Mafic magmatic | Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; phosphorus; selenium; silver |
| Non-Midcontinent Rift mafic/ultramafic intrusions | North Central | Iowa; Michigan; Minnesota | Mafic magmatic | Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; phosphorus; selenium; silver |
| South Dakota mafic intrusions | North Central | Nebraska; South Dakota | Mafic magmatic | Nickel-copper-PGE sulfide | copper; gold; selenium; silver |
| Kennebec River barrier beaches | Northeast | Maine | Placer | Garnet; Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | garnet gems and abrasives; thorium; yttrium |
| Pennsylvania fluvial placers | Northeast | Delaware; Maryland; Pennsylvania | Placer | Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | thorium; yttrium |
| Port Leyden mine area | Northeast | New York | Placer | Ilmenite/rutile/leucoxene; Zircon | iron |
| Sanford Lake-Tahawas Mining District | Northeast | New York | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |
| State Line district/BMC (Baltimore Mafic Complex) | Northeast | Delaware; Maryland; New Jersey; Pennsylvania | Mafic magmatic | Chromite | asbestos; serpentinite; talc |
| Bitterroot Range anorthosite | Northwest | Montana | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |
| Coastal Oregon beach placers | Northwest | Oregon | Placer | Gold; Ilmenite/rutile/leucoxene; PGE; Zircon | gold |
| Cretaceous heavy-mineral placer sandstones (black sandstones) | Northwest; North Central; Rocky Mountains | Montana; North Dakota; South Dakota; Wyoming | Placer | Columbite/tantalite; Gold; Ilmenite/rutile/leucoxene; Monazite/xenotime; Uraninite, autunite-group minerals; Wolframite/scheelite; Zircon | gold; iron; thorium; uranium; yttrium |
| Idaho Critical Mineral Placers | Northwest | Idaho | Placer | Columbite/tantalite; Garnet; Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | garnet; thorium; yttrium |
| Oregon stream placers | Northwest | Oregon | Placer | Gold; Ilmenite/rutile/leucoxene; PGE | gold |
| Snowbird-Dry Creek | Northwest | Montana | Magmatic REE | Carbonatite; Fluorspar | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Southwest Washington bauxite | Northwest | Oregon; Washington | Chemical weathering | Bauxite | (none) |
| Sweet Grass Hills | Northwest | Montana | Magmatic REE | Carbonatite; Fluorspar; Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Washington bauxite district | Northwest | Washington | Chemical weathering | Bauxite | (none) |
| Washington Heavy Mineral Placers | Northwest | Washington | Placer | Columbite/tantalite; Gold; Ilmenite/rutile/leucoxene; Monazite/xenotime; PGE; Zircon | thorium; yttrium |
| Washington-Idaho clay | Northwest | Idaho; Washington | Chemical weathering | Clay | (none) |
| Bald Mountain paleoplacers | Rocky Mountains | Wyoming | Placer | Gold; Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | gold; thorium; yttrium |
| Bear Lodge District and Broader Region | Rocky Mountains | South Dakota; Wyoming | Alkalic porphyry | Low sulfidation; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper-gold | copper; gold; lead; molybdenum; silver |
| Central Laramie Range | Rocky Mountains | Wyoming | Mafic magmatic | Chromite; Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; lead; phosphorus; selenium; silver |
| Fox Hills Sandstone heavy mineral placers | Rocky Mountains | Colorado | Placer | Garnet; Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | garnet; thorium; yttrium |
| Medicine Bow Mountains | Rocky Mountains | Colorado; Wyoming | Mafic magmatic | Chromite; Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; lead; phosphorus; selenium; silver |
| Meyers Ranch | Rocky Mountains | Colorado | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar; mica; thorium; uranium |
| Pikes Peak, St. Peter’s Dome (Proterozoic) | Rocky Mountains | Colorado | Climax-type | Greisen-S-R beryllium; Pegmatite NYF | gold; lead; molybdenum; silver; thorium; uranium; yttrium |
| Powderhorn District | Rocky Mountains | Colorado | Magmatic REE | Carbonatite; Fluorspar | copper; iron; lead; phosphorus; silver; thorium; vermiculite; uranium; yttrium |
| Wet Mountains | Rocky Mountains | Colorado | Mafic magmatic | Iron-titanium oxide; Nickel-copper-PGE sulfide | iron; phosphorus; silver |
| Wet Mountains | Rocky Mountains | Colorado | Magmatic REE | Carbonatite; Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; phosphorus; thorium; vermiculite; uranium; yttrium |
| Wyoming Metasedimentary and Metavolcanic Belts | Rocky Mountains | Wyoming | Mafic magmatic | Chromite; Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; phosphorus; selenium; silver |
| Arkansas River alluvial sands | South Central | Arkansas | Placer | Ilmenite/rutile/leucoxene | (none) |
| Hicks Dome Intrusion | South Central | Illinois | Hybrid magmatic REE / basin brine path | Fluorspar | lead |
| Illinois-Kentucky Fluorspar District | South Central | Illinois; Kentucky | Hybrid magmatic REE / basin brine path | Fluorspar | lead |
| Magnet Cove District- Potash Sulphur Springs | South Central | Arkansas | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| McNairy Sand placers | South Central | Kentucky; Mississippi; Missouri; Tennessee | Placer | Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | thorium; yttrium |
| Midwest Permian Ultramafic Dike District | South Central | Illinois; Indiana; Kentucky | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Rison anomaly | South Central | Arkansas | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Tertiary Heavy Mineral Sands | South Central | Tennessee | Placer | Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | thorium; yttrium |
| Tokio Cretaceous placers | South Central | Arkansas; Oklahoma | Placer | Ilmenite/rutile/leucoxene | (none) |
| Blue Ridge placers | Southeast | Georgia; North Carolina; South Carolina; Tennessee | Placer | Gold; Ilmenite/rutile/leucoxene; Monazite/xenotime | gold; thorium; yttrium |
| Fall Zone Placers | Northeast; Southeast | Alabama; Delaware; Georgia; Maryland; New Jersey; North Carolina; Pennsylvania; South Carolina; Virginia | Placer | Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | thorium; yttrium |
| Lower Shoreline Placers | Northeast; Southeast | Delaware; Florida; Georgia; Maryland; New Jersey; North Carolina; South Carolina; Virginia | Placer | Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | thorium; yttrium |
| Middle Shoreline Placers | Northeast; Southeast | Georgia; Maryland; North Carolina; South Carolina; Virginia | Placer | Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | thorium; yttrium |
| Puerto Rico shoreline placers | Southeast | Puerto Rico | Placer | Ilmenite/rutile/leucoxene | (none) |
| Virginia nelsonites | Southeast | Virginia | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |
| Virginia nelsonites | Southeast | Virginia | Placer | Ilmenite/rutile/leucoxene | (none) |
| Yadkin-Richland Mining District | Southeast | North Carolina | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |
| Arizona-New Mexico Cretaceous placers | Southwest | Arizona; Colorado; New Mexico | Placer | Columbite/tantalite; Ilmenite/rutile/leucoxene; Monazite/xenotime; Uraninite, autunite-group minerals; Zircon | thorium; uranium; yttrium |
| Big Bend alkaline rocks | Southwest | Texas | Hybrid magmatic REE / basin brine path | Fluorspar | lead; silver |
| Burro Mountains | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | (none) |
| Coal Cliffs | Southwest | Utah | Placer | Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | iron; thorium; yttrium |
| Cooks Range-Fluorite Ridge fluorite-manganese | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | molybdenum |
| Hansonburg district | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | copper; lead; silver |
| Kaiparowits placer | Southwest | Utah | Placer | Columbite/tantalite; Ilmenite/rutile/leucoxene; Monazite/xenotime; Uraninite, autunite-group minerals; Wolframite/scheelite; Zircon | thorium; uranium; yttrium |
| Lake Bonneville Beach Gravels | Southwest | Utah | Placer | Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | iron; thorium; yttrium |
| Mogollon-Wilcox-Gila fluorite districts | Southwest | Arizona; New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | (none) |
| Palm Park (Rincon district) | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | (none) |
| San Gabriel Mountains anorthosite | Southwest | California | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |
| Texas beach placer titanium | Southwest | Texas | Placer | Ilmenite/rutile/leucoxene | (none) |
| Tortugas Mountains | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | (none) |
| Zuni Mountains fluorspar | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | (none) |