This collection (known internally at Maryland Geological Survey as Component 9) consists of 1,474 black-and-white aerial photographs (1,472 unique frames plus 2 duplicates) plus 2 index maps which serve as a finding aid for the photographs in the two sub-components of this collection -- DC Collection 1 and DC Collection 2. The photographs are 9 in. by 9 in. in size and cover Washington, DC and vicinity (including portions of Maryland and Virginia). The counties in Maryland covered by these aerial photographs are Anne Arundel, Howard, Montgomery, and Prince George's Counties. No date is printed on these photographs; however, based on features shown in the photographs, Maryland Geological Survey (MGS) estimates...
Album caption: Chacmultun in the Puuc Hills of southwestern Yucatan. Many fine examples of Mayan construction, especially the use of the corbel arch and lintels over the doorways, are seen in these photographs. These buildings were erected probably not long before or after 900 A.D. Yucatan, Mexico. 1922. (Photo taken by Carnegie Institute of Washington) Close up of buildings in J.O. Kilmartin photograph numbers 63-68, kjo00063_YUC4, kjo00064_YUC4, kjo00065_YUC4, kjo00066_YUC4, kjo00068_YUC4 No index card.
Album caption: Holdup bears in Yellowstone Park. 1923. Index card: Bear in the park. Yellowstone National Park, Wyoming. 1923.
Index card: Paricutin Volcano: far distant view of Paricutin in eruption. Michoacan, Mexico. November 7, 1948.
Index card: Paricutin Volcano: Fuller and Miller at Uruapan, standing by airplane. Michoacan, Mexico. November 18, 1948.
Eugene Clyde La Rue, Claude H. Birdseye, and Herman Stabler standing by the Grand. Washington, D.C. 1924.
Handwritten notes on back of photo: C.H. Birdseye, E.C. LaRue, Herman Stabler. ca. 1924. no. 36177 Stamped on back of photo: Reproduced from the Collection of the Library of Congress. Caption: La Rue, Birdseye, and Stabler standing near the Grand in front of the Interior Building, Washington, D.C., January 12, 1924, obtained from page 243 in Boyer, D., Webb, R., & Collier, M. (2007). Aftermath: Politics and the Strident Hydraulic Engineer. In Damming Grand Canyon: The 1923 USGS Colorado River Expedition (pp. 242-278). University Press of Colorado. doi:10.2307/j.ctt4cgqhx.13
Glacier National Park, Montana. Swiftcurrent Valley, from just below Swiftcurrent Pass, looking east or down the valley. Part of Grinnell Mountain on the right and Appekunny on the left. 1911.
Album caption and Index card: At the edge of crater on Mt. Lassen. Shasta County, California. 1914. P.J. Thompson. 5x7. Handwritten note on album caption: Diller, J.S. 924. Photograph inscription: No. 16. At edge of crater on Mt. Lassen Aug. 17, 1914. Copyright 1914 by P.J. Thompson, Susanville, Cal. Note: For link to J.S. Diller photograph number 924, djs00924, refer to the Web Links below.
Album caption: A freight barge being pushed by our boat. Bags of ore are stacked along each side. The Geological Survey's Peterborough canoes are in the left center. These will be used on the trip up the Porcupine and Sheenjek Rivers. No index card.
Photomicrograph of metadiorite, north slope of Clingmans Dome. Great Smoky Mountains National Park, Swain County, North Carolina. Circa 1950.
Album caption: Photomicrograph of metadiorite, north slope of Clingmans Dome. Finer grained metadiorite showing micrographic quartz and oligoclase interstitial to zoned plagioclase, all penetrated by hornblende. The opaque areas are magnetite. Crossed nicols. Great Smoky Mountains National Park. Swain County, North Carolina. ca. 1950. No index card. Published as Figure 27-A in U.S. Geological Survey. Professional Paper 349-B. 1963.
Album caption: View east toward Cable Mountain. Cross bedding fairly well shown. Zion National Park, Utah. June 10, 1925. Index card: View east toward Cable Mountain. Zion National Park. 1925.
Album caption and index card: High pinnacle lake beds, Owyhee River, Malheur County, Oregon. 1902.
Album caption: Boulder Rapids (No. 17) in which Blake was thrown from boat. Photo by E.C. Kolb – 1923 Index card: Grand Canyon National Park, Coconino County, Arizona.
Aerial view of east side of Mount Saint Helens and limit of blast area. Skamania County, Washington. 1980.
Index card: Aerial view of east side of Mount Saint Helens and limit of blast area. Skamania County, Washington. August 8, 1980.
Album caption and index card: View southward from road near Toklat River. Kantishna district, Yukon region, Alaska. 1931.
Album caption: Upper basin of Bear Creek, Calif., Mt. Goddard quadrangle, 1908, by G.R. Davis. Handwritten notes on album caption: Amador County Index card: Upper basin of Bear Creek. Fresno County, California. 1908.
Album caption and index card: Lassen Peak from Tartous Lake. July 7, 1915. A.L. Day. Shasta County, California.
Album caption: Upstream left bank at Spread Eagle dam site mile 126.7 below Salmon. Idaho. August 1921. No index card.
Album caption and index card: Sixty foot terrace on Nehalem River at Mist, Columbia County, Oregon. n.d.
Album caption. Toe of Fourth Glacier toward the southeast Whiskey Ridge, a truncated spur, exposing (Jurassic) Naknek formation. Stratified pumice in terrace remnant in center of photo appears to match high terrace behind camp. It is plastered against the glacier margin in such a manner as to indicate that there has been no movement of the margin since pumice deposition. Uppermost south-bank tributary of Knife Creek emanating from 3-foot-wide gorge through welded tuff. Note heavy mantle of pumice on the lying glacier. Katmai, Southwest Alaska. Photo taken: 7/6/53. 4 x 5 ¼.