The Bear Lodge Property is located in central Crook County, northeastern Wyoming, in the northwestern portion of the Black Hills uplift.  The property is situated immediately near and north of the crest of the Bear Lodge Mountains, a relatively small northwesterly trending range.  The project area is flanked to the west by the Powder River Basin, famous for its extensive coal mines, and is surrounded by the Great Plains.  The Bear Lodge property lies approximately:

• 12 miles by road northwest of Sundance, Wyoming
• 22 air miles west of the South Dakota state line
• 55 air miles east of Gillette, Wyoming

Rare Earths at The Bear Lodge Project

Rare Element Resources' Bear Lodge Project property contains the "light" REEs (lanthanum, cerium, praseodymium, neodymium, samarium, europium, and gadolinium). Four of these, cerium, lanthanum, neodymium, and praseodymium, listed in decreasing abundance, make up the majority of the Bear Lodge distribution, and neodymium and praseodymium are especially valuable.

The Bear Lodge Project rare-earths are concentrated in carbonatite dikes, primarily at an area named Bull Hill, near the center of the large alkaline intrusive complex. Carbonatite bodies range in size from veinlets to dikes and approach 15 meters in width. A swarm of wide carbonatite dikes, striking northwesterly and dipping steeply to the southwest, are located beneath the southwest slope of Bull Hill. The minerals containing rare-earths within the carbonatites are mainly ancylite and bastnaesite. Drill holes penetrating Bull Hill have encountered a swarm of several closely spaced dikes and one main thick dike ranging up to 15 meters in true thickness. The dike swarm has been traced up to 300 meters along strike, and the dikes are open along strike and down dip.