VP, I am not a lawyer and I don't play one on the Net.

Energy Fuels - From website 3 areas listed as Producing/Developed Mine
Canyon Mine
The mine was approved by the Forest Service and partially developed in the late 1980’s.
There is significant existing infrastructure at the site, including a head-frame,
hoist and a partially sunk shaft. There are approximately 1,629,000 lbs. of U3O8 at Canyon,
contained in 82,800 tons of inferred resource at an average grade of 0.98% U3O8.

The Pinenut Mine is a producing uranium mine
Ore production at Pinenut is expected to continue until early-2015,
at which point the Company believes the economic resources will have been depleted.

Arizona 1
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Listed as Development project
EZ Complex (Arizona):

The EZ mine consists of the EZ1 and EZ2 “breccia pipe” deposits located in
Northern Arizona approximately 30 miles southwest of Fredonia, Arizona,
along with the DB1 and What are additional breccia pipe deposits in the vicinity.
These mining claims are all in an area surrounding the Grand Canyon National Park
that has recently been withdrawn from mineral location and entry for a 20-year period,
subject to valid existing rights. Whether or not a mining claim is valid must be
determined by a mineral examination conducted by the U.S. Bureau of Land Management.

https://books.google.com/books?id=bqUgnHuubG4C&pg=PA437&lpg=PA437&dq=mining+claims+valid+existing+rights&source=bl&ots=zE9LfS0ixF&sig=CEfn_egyYWEsUN6fAzj6kO3DAEw&hl=en&sa=X&ei=ib0vVcSXEay1sQS6loCAAQ&ved=0CEkQ6AEwBg#v=onepage&q=mining&f=false

Read part 228 - Minerals Page 160
Any 2bit lawyer knows this will stop any development if put before a simpithetic judge.

It has been done!
Mr. Kris Hefton
Chief Operating Officer
And Director VANE Minerals (US) LLC
Testimony
Before the Subcommittee
On Energy and Mineral Resources
June 13, 2013

Mr. Chairman,
Secretary Salazar issued a segregation order on July 21, 2009,
which effectively shut down all activities except for ongoing mining at a few locations.
The language of the order stated; “Neither the segregation nor any withdrawal,
however, would prohibit ongoing or future mining exploration or extraction operations
on valid pre-existing claims.” The truth of this matter is that the DOI viewed
a “valid” claim as one on which an economic deposit was already proven and that it planned to conduct,
at the claim owner’s expense, a validity exam on any claim where a project was proposed.
DOI clearly stated in advance that if economic quantities of mineral could not be demonstrated,
the claim would be declared invalid.