Site for the 100-inch telescope, Mount Wilson Observatory, seen from the east, showing grading and engine house for stone crusher. Trees are seen on the far left and far right-hand sides of the photograph. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
If you're wondering about permissions and what you can do with this item, a good starting point is the "rights information" on this page. See our terms of use for more tips.
Share your story
Has Calisphere helped you advance your research, complete a project, or find something meaningful? We'd love to hear about it; please send us a message.