Inter-University High Altitude Labs (IUHAL) Records
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.
- Inter-University High Altitude Labs (Organization)
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Biographical / Historical
The Inter-University High Altitude Labs (IUHAL) were created in 1948 as a coalition 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 'atom smashers,' like 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.
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)
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.
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.
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