Critical Minerals Factbook
Deposit

Middle Fork Pine Creek

Middle Fork Pine Creek is a rare earth occurrence in Wyoming, recorded in the USGS USMIN rare earth element occurrence database (ver. 4.0, June 2019).

Facts on this page last re-verified Aug 12, 2026 — the oldest verification date among its current claims. How we verify.

Location: Wyoming, United States (42.108, -110.817 approx.)

Commodities: phosphate; rare earth elements

Deposit model: unclassified · upwelling type phosphate deposits

Geology

...a weak to non-calcareous packestone with fine- to medium-grained apatite pellets and coarse to very coarse grained concentrically ringed apatite “ooids.” While multiple REE and selenium were elevated quintuple the average in the Phosphoria Formation, yttrium was often elevated 7, 18, and even 27 times the crustal abundance. (Sutherland and Cola (2016))

Record imported from USGS USMIN ver. 4.0 (June 2019). Developments after that date appear on facility records, not here; see the methodology.

Sources