4541. O-41-61 Maps Public content 1925. Currently: Sverdlovskaya oblast, Verkhnesaldinskij rayon; Scale =1:100,000. Геодезический комитет ВСНХ-СССР.
4542. O-46-138 (Krasnoyarsk, Russia) Maps Public content 1928. Modern area represented: Krasnoyarsk, Russia; Scale =1:100,000; Секретно Для служебного пользования. Генеральный штаб Красной Армии.
4543. O-47-91 (Irkutskaya oblast) Maps Public content 1928. Currently: Irkutskaya oblast; Scale =1:100,000.
4544. Ob' Bay: Antarctica Maps University Of Minnesota Public content 1970. Projection: Lambert Conformal Conic Projection: Standard Parallels -68º40' and -71º20'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
4545. Ohio Range: Antarctica Maps University Of Minnesota Public content 1986. Henry Bradshaw Society, Kellogg, Karl S., and McCartan, Lucy. Projection: National Geodetic Vertical Datum of 1929; Series: USGS 1:250,000 Geologic Reconnaissance Series. United States Geological Survey.
4546. Ohio Range: Antarctica Maps University Of Minnesota Public content 1963. Projection: Polar Stereographic Projection: Standard Parallel -80º14'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
4547. Orthophoto image (East part) of the George Mason Fairfax Campus, Fairfax, VA 2005 George Mason University Public content 2005. This georeferenced aerial photo image represents East part of the Fairfax campus, George Mason University in 2005.
4548. Orthophoto Image, George Mason University, Fairfax, VA George Mason University Public content 2005. This georeferenced image represents West part of the GMU Fairfax campus, 2005.
4549. P-34-124 Гета (Geta, Finland) Maps Public content 1910. Modern area represented: Geta, Finland; Scale =1:100,000. Генеральный штаб Красной Армии.