Inter-University High Altitude Labs (IUHAL) Records

Collection

Identifier: U337

Staff Only

Abstract

The Inter-University High Altitude Labs (IUHAL) at Mount Evans (1935-1990) and Echo Lake (1948-1990) and were used for the study of cosmic rays. Seven universities including the University of Denver, Cornell, MIT, and Syracuse University collaborated under IUHAL. The labs remained under use by the University of Denver's (DU) Department of Physics and Astronomy until 1990, when they transferred to use under the Biology and Natural Sciences Departments at DU. The collection includes correspondence, photographs, reports, billing notices, and published papers and articles.

Dates

1935-1990

Creator

Inter-University High Altitude Labs (Organization)

Conditions Governing Use

Copyright not evaluated: The copyright and related rights status of this Item has not been evaluated. Please refer to the organization that has made the Item available for more information. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. See: https://rightsstatements.org/page/CNE/1.0/?language=en

Biographical / Historical

The Inter-University High Altitude Labs (IUHAL) were created in 1948 as a consortium between several universities for the study of cosmic rays. Two high altitude labs under the ownership of the University of Denver were built at Mount Evans and Echo Lake. Mount Evans was built independently in 1935 and was brought under IUHAL's banner in 1948 with the creation of the Echo Lake lab. The usage of high altitude labs decreased sharply in the 1960s due to the development of early "atom smashers," later leading to the Hadron Collider in Switzerland. Despite this, the labs remained under use by the University of Denver's (DU) Department of Physics and Astronomy until 1990, when they transferred to use under the Biology and Natural Sciences Departments at DU.

Extent

8.5 Linear Feet (2 record boxes, 2 flat boxes, 1 roll) ; Flat box: 24.5 x 20.5 x 3 inches (1); Flat box: 18.5 x 14.5 x 3 inches (1); Roll: 3 feet (1)

Additional Description

Scope and Contents

This collection includes photographs taken at the high altitude labs, topographical maps of the surrounding areas, correspondence between the labs and the universities, reports on the labs and their findings, maitenence and utility notes on the labs, and publicity clippings.

Arrangement

This collection is arranged in 4 series: 1. Mount Evans (active 1935-1990). 2. Echo Lake (active 1948-1990). 3. Inter-University High Altitude Lab (IUHAL) 1948-1990. 4. Maps.