Pima County, Helvetia District, Lewisohn Copper/Leisure Planning

The 'Pima County, Helvetia District, Lewisohn Copper/Leisure Planning' file is part of the Kelsey Boltz Mining Collection. Kelsey Boltz has been a registered mining engineer and geologist in Arizona since the mid 1960s. A 1953 graduate of the Colorado School of Mines, he founded Colamer Corporation and Nuclear Dynamics, both companies active in the uranium industry in the Grants Uranium Region of New Mexico in the 50s, 60s and 70s. In 1981 he co-founded Century Capital, Inc., an investment banking and retail brokerage firm which provided several hundred million dollars financing for various industries including natural resource companies. In 1990 he started his exploration consulting company, Boltz Group International, which initiated and managed several mining projects in Mexico, Chile and Bolivia. The collection consists of geologic reports, maps, assays and surveys. The collection covers properties across the western U.S. and Mexico.

 

Resource ID: 
2004-01-0045
Resource Type: 
Document: Text
Theme Keywords: 
geologic maps
maps and atlases
mineral resources
mineralogy
mining and quarrying
reports
Copper, Oxide
Silver, Oxide
Gold, Lode
Place Keywords: 
United States
Arizona
Pima County
Sahuarita - 15 Min
Franklin, Cushing & Marion Gp
Rosemont Group
Lewisohn Estate
T18S R15E Sec 25 SW
Santa Rita Mts. physiographic area
Helvetia-Rosemont metallic mineral dist.
Pima170
Time Keywords: 
1900s
1950s
1960s
1970s
Start Date: 
1905-01-01
End Date: 
1970-12-31
Coordinates: 
Publication Date: 
2015-09-02
Contributor: 
Schmitt, Harrison
Boltz, Kelsey L.
Higbie, Hamilton A.
Collection: 
Kelsey Boltz
Bibliographic Citation: 
Please cite by using: [a description of the item]. 2004-01-0045, Kelsey Boltz mining collection, Arizona Geological Survey.
Contact Phone: 
602-771-1601
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