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A sectional chart is a two-sided chart created from a Lambert Conformal Conic Projection [1] with two defined standard parallels. The scale is 1:500,000, with a contour interval of 500 feet. The size of each sectional is designed to be "arm's width" when completely unfolded.
The first sectional chart was published in 1930; in 1937 the full series of the lower 48 states was completed. These early sectional charts were smaller (most covered two degrees of latitude and six of longitude) with the map on one side; after 1950 the legend and index to adjoining charts was on the reverse.
The international border between Canada and the United States, with Yukon on one side and Alaska on the other, circa 1900-1923 [1]. The borders of Canada include: . To the south and west: An international boundary with the United States, forming the longest shared border in the world, 8,893 km (5,526 mi); [2] (Informally referred as the 49th parallel north which makes up the boundary at parts.
A World Aeronautical Chart (WAC) was a type of aeronautical chart used for navigation by pilots of moderate speed aircraft and aircraft at high altitudes in the United States. They are at a scale of 1:1,000,000 (about 1 inch = 13.7 nautical miles or 16 statute miles).
The Canada–United States border is the longest international border in the world. [a] The boundary (including boundaries in the Great Lakes, Atlantic, and Pacific coasts) is 8,891 km (5,525 mi) long. The land border has two sections: Canada's border with the contiguous United States to its south, and with the U.S. state of Alaska to its
FAA-Terminal Area Chart Baltimore-Washington from 2011. Like the VFR sectional charts that they complement, terminal area charts depict topographic features and other information of interest to aviators flying visually, including major landmarks, terrain elevations, visual navigation routes, ground-based navigation aids, airports, rivers, cities, and airspace boundaries.
This article includes lists of border crossings, ordered from west to east (north to south for Alaska crossings), along the Canada–United States border. Each port of entry (POE) in the tables below links to an article about that crossing. On the U.S. side, each crossing has a three-letter Port of Entry code.
Canada covers 9,984,670 km 2 (3,855,100 sq mi) and a panoply of various geoclimatic regions, of which there are seven main regions. [9] Canada also encompasses vast maritime terrain, with the world's longest coastline of 243,042 kilometres (151,019 mi). [20] The physical geography of Canada is widely varied.