topographic base
51Contour line — This article is about lines of equal value in maps and diagrams. For more meanings of the word contour , see Contour (disambiguation). The bottom part of the diagram shows some contour lines with a straight line running through the location of… …
52climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …
53United States Geological Survey — Seal Official …
54Surveying — For other uses, see Survey (disambiguation). US Navy Surveyor at work with a leveling instrument …
55Antarctic Place-names Commission — The Antarctic Place names Commission was established by the Bulgarian Antarctic Institute in 1994, and since 2001 has been a body affiliated to the Ministry of Foreign Affairs of Bulgaria. The Commission approves Bulgarian place names in… …
56human disease — Introduction an impairment of the normal state of a human being that interrupts or modifies its vital functions. health versus disease Before human disease can be discussed, the meanings of the terms health, physical fitness, illness …
57Mountain peaks of Greenland — Main article: Geography of Greenland See also: Mountain peaks of North America This article comprises three sortable tables of major mountain peaks of Greenland. For this article, Greenland includes all of Kalaallit Nunaat including the Island of …
58Pico de Orizaba — Pico de Orizaba, looking northwest from Fortín de las Flores, Veracruz Elevation …
59Camp Academia — (Lager Akademiya la ger a ka de mi ya) is a geographical locality in eastern Livingston Island, South Shetland Islands, Antarctica, named for the Bulgarian Academy of Sciences in appreciation of Academy’s contribution to the Antarctic exploration …
60Stanley Mitchell hut — Geobox| alpine hut name = Stanley Mitchell hut native name = other name = category = image caption = official name = etymology type = Named for etymology = Stanley Mitchell nickname = symbol = country = CAN state type = Province state = BC region …
