Ian A. Smith was an employee of the California Portland Cement Company's Colton Plant from 1952-1977. Smith also conducted
research regarding the history of mining operations at Slover Mountain in Colton, California. The Ian A. Smith papers primarily
focus on the California Portland Cement Company's presence at Slover Mountain, but also contains material regarding Isaac
Slover and the history of the southwestern United States, particularly that of San Bernardino County, California. Two versions
of Smith's manuscript, "Vanishing Mountain: A History of Mining Operations at Mt. Slover, Colton, California", are included.
Additionally, the collection includes photographs, notes, correspondence, press clippings, maps, and other material related
to Smith's research.
Ian A. Smith was born on October 15, 1920. He began working for the California Portland Cement Company's Colton Plant in 1952.
As an employee of the California Portland Cement Company, Smith held several different positions including Quarry Engineer
(1952-1953), Quarry Superintendent (1953-1958), General Quarry Superintendent of the Colton and Mojave Plants (1958-1968),
and Chief Mining Engineer (1968-1977). Disability ended his tenure with the California Portland Cement Company in 1977, after
nearly thirty years of service.
1.5 linear feet
(2 document boxes, 2 half-size document boxes)
Copyright has not been assigned to the University of California, Riverside Libraries, Special Collections & Archives. All
requests for permission to publish or quote from manuscripts must be submitted in writing to the Head of Special Collections
& Archives. Permission for publication is given on behalf of the Regents of the University of California as the owner of the
physical items and is not intended to include or imply permission of the copyright holder, which must also be obtained by
This collection is open for research.