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San Ysidro Range Improvement Co. records

Identifier: Ms-0317

Scope and Content Note

The San Ysidro Range Improvement Company collection is the records of the company from 1950-1952 including correspondence, mailing lists, maps, membership lists, reports, and weather forecasts.

Partial provenance was give to how the collection was it when it was updated, but re-ordered for sake of folder brevity and actual alphabetic order that was hinted at, but not correctly done.


  • 1941 - 1956

Access and Use Restrictions

This material may be examined by researchers under supervised conditions in the Search Room.

Copy Restrictions

Limited duplication is allowed for research purposes. User is responsible for compliance with copyright and other applicable statutes.

Copyrights associated with this collection have not been transferred and assigned to New Mexico State University.

Organizational Sketch

The San Ysidro Range Improvement Company was created as a non-profit scientific corporation whose purpose was to increase rainfall by means of "cloud-seeding" during 1950 and 1951. After that time, remaining funds from the corporation became the San Ysidro Range Improvement Association. The Association worked with Dr. Irving P. Krick of Denver, Colorado and with Howard Major as the President, Fred D. Huning as Vice President among others.


10 linear inches

Language of Materials



Records of the San Ysidro Range Improvement Company mostly from 1950-1952 whose purpose was to figure out new creation of rainfall in certain parts of New Mexico and Colorado.
Guide to the San Ysidro Range Improvement Co. records
Updated by Cassie McClure.
April, 2006.
Language of description
Script of description
Code for undetermined script
Language of description note
Finding aid is in English

Repository Details

Part of the New Mexico State University Library Archives and Special Collections Repository

Branson Hall
PO Box 30006
MSC 3475
Las Cruces New Mexico 88003 USA