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The 80-rod Height of Land Portage is a significant part of the land border; the remainder is along two other portages, Watap Portage (100 rods or 0.31 miles or 500 metres) a short distance to its east, and Swamp (or Monument) Portage (72–80 rods or 0.23–0.25 miles or 360–400 metres) to the west in the BWCA and Quetico Provincial Park.
The term height of land is used in Canada and the United States to refer to a drainage divide. [2] It is frequently used in border descriptions, which are set according to the "doctrine of natural boundaries". [3] In glaciated areas it often refers to a low point on a divide where it is possible to portage a canoe from one river system to ...
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 ...
The position and height of each benchmark are shown on large-scale maps. The terms "height" and "elevation" are often used interchangeably, but in many jurisdictions, they have specific meanings; "height" commonly refers to a local or relative difference in the vertical (such as the height of a building), whereas "elevation" refers to the ...
Topographic maps are also commonly called contour maps or topo maps. In the United States, where the primary national series is organized by a strict 7.5-minute grid, they are often called or quads or quadrangles. Topographic maps conventionally show topography, or land contours, by means of contour lines.
The Laurentian Divide (green) extends from Triple Divide Peak in northwestern Montana to the tip of the Labrador Peninsula at the 60th parallel north.. The Laurentian Divide also called the Northern Divide [1] and locally the height of land, is a continental divide in central North America that separates the Hudson Bay watershed to the north from the Gulf of Mexico watershed to the south and ...
This is a list of countries and territories by their average elevation above sea level based on the data published by Central Intelligence Agency, [1] unless another source is cited.
Detail from Montresor's map showing the height of land; Spider Lake and swampy areas are absent. Detail from a 1924 topographic map of the same area, annotated with Arnold's approximate route over the height of land (H). Note Spider Lake and swamps shown to the east of Lake Mégantic; parts of the expedition were lost for days there.