26 focus areas match these criteria.
| Focus area | Region | States | Mineral Systems | Deposit types | Commodities |
|---|---|---|---|---|---|
| Elk Creek carbonatite | North Central | 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 oxide-ultramafic intrusions (OUIs) | North Central | Minnesota | Mafic magmatic | Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; phosphorus; selenium; silver |
| Adirondack magnetite-apatite deposits | Northeast | New York; Vermont | IOA-IOCG | Iron oxide apatite | iron |
| Port Leyden mine area | Northeast | New York | IOA-IOCG | Iron oxide apatite | iron |
| 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 |
| 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 |
| 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) |
| 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 |
| 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 |
| Arkansas River alluvial sands | South Central | Arkansas | Placer | Ilmenite/rutile/leucoxene | (none) |
| Magnet Cove District- Potash Sulphur Springs | South Central | Arkansas | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; 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 |
| 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 |
| San Gabriel Mountains anorthosite | Southwest | California | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |