The Tingi Hills Forest Reserve is located in a mountain range in the east of Sierra Leone and occupies an area of 119 km (46 sq mi). It became a forest reserve in 1947 and a non-hunting forest reserve in 1973.
5-640: The area reaches from an elevation 400 to 1,850 m (1,310 to 6,070 ft) at the north peak of the dual peaked Sankan Biriwa massif. In the lower regions the area consists of forest interspersed with savannah then moves into shrub savannah and then mountain grassland at higher altitudes. Over 200 species of birds have been recorded in the area and the reserve is also home to western baboons and forest elephants . The reserve has been designated an Important Bird Area (IBA) by BirdLife International because it supports significant populations of many bird species. This Sierra Leone location article
10-527: Is a stub . You can help Misplaced Pages by expanding it . This Africa protected areas related article is a stub . You can help Misplaced Pages by expanding it . Elevation The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid , a mathematical model of the Earth 's sea level as an equipotential gravitational surface (see Geodetic datum § Vertical datum ). The term elevation
15-490: Is mainly used when referring to points on the Earth's surface, while altitude or geopotential height is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and depth is used for points below the surface. Elevation is not to be confused with the distance from the center of the Earth. Due to the equatorial bulge , the summits of Mount Everest and Chimborazo have, respectively,
20-582: The landscape at different scales. Tools inside the GIS allow for manipulation of data for spatial analysis or cartography. A topographical map is the main type of map used to depict elevation, often through contour lines . In a Geographic Information System (GIS), digital elevation models (DEM) are commonly used to represent the surface (topography) of a place, through a raster (grid) dataset of elevations. Digital terrain models are another way to represent terrain in GIS. USGS (United States Geologic Survey)
25-621: The largest elevation and the largest geocentric distance. In aviation, the term elevation or aerodrome elevation is defined by the ICAO as the highest point of the landing area. It is often measured in feet and can be found in approach charts of the aerodrome. It is not to be confused with terms such as the altitude or height. GIS or geographic information system is a computer system that allows for visualizing, manipulating, capturing, and storage of data with associated attributes. GIS offers better understanding of patterns and relationships of
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