The Minas Ragra was a large vanadium mine in the Pasco Region of Peru.

The deposit was discovered by a United States Geological Survey expedition on November 20.

[1] Members of this expeditions were Donnel Foster Hewett and José J. Bravo In this deposit the mineral patrónite was first discovered by a member of the expedition Antenor Rizo-Patron.

[2] A mine was established in very short time by the Vanadium Corporation of America.

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