This interactive map and sortable table show 13,293 uranium mine, prospect and occurrence locations across the United States, color-coded by what each site is: past producer (4,472), occurrence (2,829), prospect (1,359), in-situ recovery (21), underground mine (15), open pit mine (6) and unclassified (4,591). Sites are shown across all statuses: active (9), standby (9), in development (18) and decommissioned or historic (13,257), across 33 states. This page maps only places where uranium is taken out of the ground, whether by conventional mining or by in-situ recovery wellfields; mills and central processing plants, including White Mesa and Hobson, are mapped on the Uranium Supply Chain page instead. The central processing plants at Ross and Rosita are the exception, included here because their wellfields are on site. Only three conventional mines produce today, Pinyon Plain in Arizona and the La Sal and Pandora mines in Utah, all feeding the White Mesa Mill, and almost all US uranium now comes from in-situ recovery instead: of the seven US uranium operations running in 2024, six were ISR wellfields in Wyoming and Texas and only one was an ore-processing mill. Every currently active, standby or in-development extraction site here also appears on the Uranium Supply Chain page, which is the only duplication of records anywhere on this site. Historic locations come from the EPA Uranium Location Database, and 75% are independently corroborated by the USGS Mineral Resources Data System, which also supplies the site classification.
*Note 1 Location recorded in the EPA Uranium Location Database (ULD II), a compilation of 25 federal and state sources. The database records where uranium was mined, prospected or found; it does not record mining method, ownership, production or current condition. The reliability figure is EPA’s own score out of 10 for how well the location could be corroborated across those sources. Not scored means EPA did not run the assessment on that record rather than that the location failed it.
*Note 2 Independently corroborated by the USGS Mineral Resources Data System, which holds a uranium record within half a mile of this location. MRDS also supplies the site classification shown in the Type column: past producer, prospect or occurrence.
| # | Mine or prospect | Type | State | Nearest city | Operator | Status | Scale | First worked |
|---|
Development status comes from the USGS Mineral Resources Data System where a match exists; the named mines are classified by hand.
A site that actually yielded uranium ore. USGS classes both past producers and current producers this way; on this page they are combined, because MRDS records status as of when the entry was made, mostly decades ago, and none of these are producing now.
A site that was explored for uranium, by trenching, shaft-sinking or drilling, but never entered production. Prospects outnumber real mines across most of the Colorado Plateau. This also covers Coles Hill in Virginia, the largest undeveloped deposit in the country, which is defined but blocked by a state ban the Supreme Court upheld in 2019.
A place where uranium was documented in the rock but no development followed. An occurrence is a geological observation rather than a working, and these should not be read as mines.
A wellfield where an acidic or alkaline solution is circulated through the mineralized rock to dissolve uranium, which is then recovered as yellowcake at the surface. Nothing is excavated, and there is no ore, no waste rock and no mill tailings.
A named mine worked by shafts, declines or adits. These are hand-built records with operator, capacity and history, covering the mines producing today and the historically significant ones.
A named mine worked from surface by excavation, including Jackpile-Paguate, once the largest open-pit uranium mine in the world, and Midnite Mine on the Spokane Reservation.
An EPA location with no matching USGS record within half a mile, so no development status could be assigned. It may be a mine, a prospect or an occurrence; the database records the location without saying which.
Two things are on this map at once. A handful of named operations carry full detail: the three conventional mines producing today, a pipeline of permitted projects, and the historic mines whose significance is now largely environmental. Behind them sit 13,257 recorded locations from the EPA Uranium Location Database, a compilation of federal and state records covering mines, prospects and occurrences across 33 states.
The density tells the story of the Cold War procurement era, when the Atomic Energy Commission was the sole legal buyer of US uranium. The contrast with today is stark. The USGS reported in April 2026 that just seven US uranium operations across three states produced 677,000 pounds of U₃O₈ in 2024, less than 0.5% of global output and about 1.4% of what US commercial reactors need. Production is nonetheless recovering sharply from a floor of 21,000 pounds in 2021, and is projected to exceed four million pounds by 2030. Colorado and Utah between them hold more than 5,200 recorded locations, and the Colorado Plateau stands out as a dense band running from western Colorado through southern Utah into Arizona and New Mexico. Most of these are small workings that were abandoned rather than closed.
These are not all mines, and the map now says which are. Cross-matching every EPA location against the USGS Mineral Resources Data System found a uranium record within half a mile for 9,998 of them, just under 75%. Where MRDS matched, its development status is used as the site type: 4,472 past producers that actually yielded ore, 2,829 occurrences where uranium was merely documented, and 1,358 prospects that were explored but never produced. The remaining 4,591 had no MRDS match and are shown as unclassified. Each corroborated record states the MRDS classification and the distance between the two databases’ coordinates.
Each record carries an EPA reliability score from 0 to 10, shown in every profile. A score of 0 means EPA did not run the assessment rather than that the location failed it: the component flags are empty on all 741 such records, against 88 to 99% populated on the scored ones. All 741 come from two credible sources, USGS MAS/MILS and the Railroad Commission of Texas, and 450 of them, 61%, are independently corroborated by MRDS. They are mapped and labelled as unassessed rather than dropped.
The database does not record mining method, ownership, production volume or current condition, and it was last compiled in 2006. For scale against the historic record mapped here, in-ground resources at the end of 2024 stood at an estimated 468.1 million pounds of economically recoverable, reasonably assured U₃O₈, and the USGS has separately assessed a mean of 220 million pounds of recoverable undiscovered resource in the sandstone deposits of the Texas Coastal Plain and 40 million pounds in the calcrete deposits of the Southern High Plains. Before mapping, 384 records that describe drill holes and outcrop samples rather than workings were removed, along with 1,075 records sharing exact coordinates with another entry and any location within 1.5 miles of one of the named mines above. EPA warns that because the compilation draws on multiple sources a single site may appear more than once, so treat the count as an upper bound on distinct locations rather than a census of mines.
Separately, the Department of Energy has inventoried 3,470 defense-related uranium mines under its DRUM programme, of which 401 sit on tribal land, including 279 on the Navajo Nation in Arizona. DOE publishes those as state-level counts rather than a site list, so they are not mapped individually here.