Solar greenhouse owned and built by Peter Howell, located at about the 8,500 foot level in the front range.
Using arches from a qounset hut, the structure was covered with two layers of 10 mil vinyl with a dead air space of four inches. Blackened 55-gallon oil drums filled with water absorb heat during the day and lose it at night to prevent drastic temperature changes. Crops such as lettuce and peas were grown all winter. In may with a foot of snow and a temperature of 35 degrees, it was 80 degrees inside, 05/1975. Photographer: Norton, Boyd
Subjects:
Environmental protection
Natural resources
Pollution
Denver (Colorado, United States) inhabited place
Persistent URL: research.archives.gov/description/557321
Repository: Still Picture Records Section, Special Media Archives Services Division (NWCS-S), National Archives at College Park, 8601 Adelphi Road, College Park, MD, 20740-6001.
For information about ordering reproductions of photographs held by the Still Picture Unit, visit: www.archives.gov/research/order/still-pictures.html
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Access Restrictions: Unrestricted
Use Restrictions: Unrestricted. Original public domain image from Flickr