United Comstock Pumping Association Records

Identifier: NC89
The collection is made up of correspondence in letterpress copy books, 1898-1911; daily and weekly reports, 1898-1918; cash books, 1898-1920; a tunnel account book, 1905-1909; and general ledgers, 1898-1907. The daily and weekly reports include information on the Ward Shaft Association, 1910-1912.


  • 1898-1920



Collection is open for research. Materials must be used on-site; advance notice suggested. Access to parts of this collection may be restricted under provisions of state or federal law.


1 Cubic Feet (9 boxes, 16 volumes)


Records of operation include daily and weekly reports (including Ward Shaft Association, 1910-1912), letters, cashbooks, financial ledgers, and a tunnel account book, 1905-1909.

Administrative History

The Comstock Pumping Association was established in 1898 by 28 mine companies in Virginia City. Designed as a means to increase stock values, the purpose of the association was to pump water from the Comstock mines below the Sutro Tunnel level. Finds of rich ore pockets enabled pumping to continue despite the great costs. In 1910 the Association combined with the Ward Shaft Association to become the United Comstock Pumping Association. Pumping was discontinued in 1922.


This collection has been divided into the following series:

Series 1: Reports

Series 2: Operations

Series 3: Accounts

Series 4: Miscellaneous

Immediate Source of Acquisition

Donated by the Comstock Pumping Company circa 1929.

Related Archival Materials

[Mine Operators of Storey County]. Letter to Storey County Local, International Union of Mine, Mill & Smelter Workers. NC223.,Special Collections Department;,University of Nevada-Reno Library; Reno, NV 89557.
A Guide to the Records of the United Comstock Pumping Association
Robert Armstrong
March 1966
Description rules

Repository Details

Part of the University of Nevada, Reno. Special Collections Department Repository

Mathewson-IGT Knowledge Center
1664 N. Virginia St.
Reno Nevada 89557-0322 USA
775-682-5724 (Fax)