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Don Otto mine, Tonco-Amblayo district, San Carlos department, Salta, Argentina

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Latitude & Longitude (WGS84): 25° 36' 42'' South , 65° 55' 39'' West
Latitude & Longitude (decimal): -25.6116666667, -65.9275
Uranium deposits at 2428 metres above sea level.
The largest of them was "Don Otto", which featured a continuous mineralization on surface over 2,500 meters, with useful power of 1 meter and average 0.15% U3O8. Development work met on the southern half of the deposit up to 100 meters of depth (level 0), with more than 2,000 meters of underground workings.

Mineral List

4 entries listed. 3 valid minerals.

The above list contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


C. T Friz, F. Rodrigo y P. N. Stipanicic. Recursos y posibilidades uraníferas en Argentina. Session 2.11 P/405. Comisión Nacional de Energía Atómica. Argentina.

J. L. Gamba (1959). Prospección aérea por minerales radioactivos. Posibilidades operativas en la Provincia de Salta. Informe interno, Gerencia de materias Primas, CNEA.

P. N. Stipanicic, O. L Baulíes, F. Rodrigo y C. G. Martínez (1960). Anales de las primeras Jornadas Geológicas Argentinas, pág. 351-384, San Juan.

E. Linares y R. O. Toubes (1960). Anales de las primeras Jornadas Geológicas Argentinas, vol. 3, págs. 191-206, San Juan.

C. A. Parera y M. Ibáñez (1963). Yacimiento uranífero "Don Otto" y demás afloramientos del área Tonco-Amblayo. Anales de las segundas Jornadas Geológicas Argentinas. Salta.

Raúl Jorge Tauber Larry.

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