The Lead-Zinc Producers Association records (1963-1981) consist of correspondence, press releases, news clippings, office files, and other materials concerning this association. The Lead-Zinc Producers Association was a lobbying group that dealt with issues impacting the lead and zinc industries in America.
The H. Byron Mock papers (1881-2004) consist of personal and business materials. Mock served for a number of years in the Bureau of Land Management as Director of the Colorado-Utah Region, as a member of the Public Land Law Review, and also had a private legal firm. The majority of his work deals with mining and grazing rights in the West.