51. Bennett Mtn Yale Public content 1959. 2011-12-12T21:25:12Z. 2022-03-29T20:39:10Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Idaho.
52. Benson, Ariz Yale Public content 1959. 2011-12-12T21:21:11Z. 2022-03-29T20:38:43Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Arizona.
53. Big Clifty, Ky. Yale Public content 1959. 2011-12-12T21:26:49Z. 2022-03-29T20:39:24Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Kentucky.
54. Big Delta (A-1) quadrangle, Alaska : 1:63 360 series (topographic). Yale Public content 1959. 2012-09-28T15:06:19Z. 2022-03-29T20:37:13Z. Geological Survey (U.S.). Interior-Geological Survey. English. cartographic image. Public. Alaska.
55. Big Meadow, Calif Yale Public content 1959. 2011-12-12T21:22:25Z. 2022-03-29T20:38:51Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. California.
56. Bisbee, Ariz Yale Public content 1959. 2011-12-12T21:21:12Z. 2022-03-29T20:38:44Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Arizona.
57. Black River (A-1) quadrangle, Alaska : 1:63 360 series (topographic). Yale Public content 1959. 2012-09-28T15:09:24Z. 2022-03-29T20:37:16Z. Geological Survey (U.S.). Interior-Geological Survey. English. cartographic image. Public. Alaska.
58. Black River (A-2) quadrangle, Alaska : 1:63 360 series (topographic). Yale Public content 1959. 2012-09-28T15:38:26Z. 2022-03-29T20:37:46Z. Geological Survey (U.S.). Interior-Geological Survey. English. cartographic image. Public. Alaska.
59. Black River (A-3) quadrangle, Alaska : 1:63 360 series (topographic). Yale Public content 1959. 2012-09-28T15:09:22Z. 2022-03-29T20:37:16Z. Geological Survey (U.S.). Interior-Geological Survey. English. cartographic image. Public. Alaska.
60. Black River (A-4) quadrangle, Alaska : 1:63 360 series (topographic). Yale Public content 1959. 2012-09-28T15:38:27Z. 2022-03-29T20:37:46Z. Geological Survey (U.S.). Interior-Geological Survey. English. cartographic image. Public. Alaska.