51. Ketchum Mountain Yale Public content 1923. 2011-12-12T21:37:29Z. 2022-03-29T20:40:43Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Texas.
52. Kita Shina zenzu General map of northern China. [cartographic material] = Yale Public content 1923. 2012-11-28T17:15:52Z. 2020-07-14T15:11:45Z. Tōkyō Chigaku Kyōkai. Tōkyō Chigaku Kyōkai. Japanese. Public. China.
53. Lamont townsite : being a subdivision of a portion of the S.E. 1/4 of section 1, T.31 S., R.28 E., M.D.B. & M. Yale Public content 1923. 2014-06-19T19:58:26Z. 2015-04-21T22:06:06Z. Hoy, W. W., cartographer. publisher not identified. English. cartographic image. Public. Lamont (Calif.), California, and Lamont.
54. Lehigh Yale Public content 1923. 2011-12-12T21:26:35Z. 2022-03-29T20:39:22Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Iowa.
55. Livingston Maor, N.Y. Yale Public content 1923. 2011-12-12T21:33:33Z. 2022-03-29T20:40:14Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. New York.
56. Lock Haven, Penn Yale Public content 1923. 2011-12-12T21:36:21Z. 2022-03-29T20:40:34Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Pennsylvania.
57. Long Eddy, N.Y. Yale Public content 1923. 2011-12-12T21:33:34Z. 2022-03-29T20:40:14Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. New York and Pennsylvania.
58. Lopena Island, Tex Yale Public content 1923. 2011-12-12T21:37:34Z. 2022-03-29T20:40:44Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Texas.
59. Lots in the borough of Arnold Yale Public content 1923. 2018-05-18T21:31:36Z. 2018-09-05T19:36:09Z. John McCartney Kennedy. English. cartographic image. Public. Pennsylvania, Arnold, and Arnold (Pa.).
60. Mammoth Cave, Ky. Yale Public content 1923. 2011-12-12T21:26:58Z. 2022-03-29T20:39:25Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Kentucky.