The gold and rare earth bearing placer deposits found on ...
Gisements alluviaux d'or, La Paz, 1-5 juin 1991 THE GOLD AND RARE EARTH BEARING PLACER DEPOSITS FOUND ON THE LEON DE ORO AND TOR0 DE ORO CLAIMS, URUBAMBA AND YANATILLI RIVERS, DEPARTMENT OF CUZCO, PERU ALLEN DAVID V. HEYL 11580 Mira Loma Road. Reno, Nevada 89511, U.S.A.