Robert Anthony Rivera was a mine engineer, mining geophysicist, and mining company executive during the second half of the twentieth century. Educated at the University of California-Berkeley, Rivera spent the early part of his career as a mine engineer for Union Carbide Corporation in California and Grand Junction, Colorado. From 1967 to 1978, he was chief geophysicist for Placer Development, Ltd., where he worked in Canada and Latin America (including Mexico and Chile). From 1978 to 1981, Rivera was vice president of Resources Associates of Alaska, Inc. in Golden, Colorado. From 1981 until his death, he served as vice president of CoCa Mines, Inc. in Denver, Colorado, where he worked primarily in the Western United States (including Arizona, California, and Nevada).
From the description of Robert Anthony Rivera papers, 1912-1991. (University of Wyoming, American Heritage Center). WorldCat record id: 181738108
