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Building site for the Hooker reflecting telescope, Mount Wilson Observatory. Installation of the concrete footings for the building. Photographed from the 150-foot tower telescope. A few construction workers are visible on the work site, as well as several wooden sheds. Trees surround the construction area; the San Gabriel Mountains are in the background. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Construction projects Construction equipment Construction workers Building--California Sheds Astronomical observatories Mount Wilson Observatory Trees San Gabriel Mountains (Calif.) Photographic prints. (gmgpc)