![]() ![]() Then 5880, then 5920, 5960, and the final contour line near Shining Rock hill's apex is the index contour at 6000 feet. This map's contour interval is 40 feet, meaning the next highest intermediate contour above the 5800-foot index is 5840. Notice further three of the hilltops shown here: Shining Rock, Dog Loser Knob, and Old Butt Knob. Notice the brown contour lines depicting elevation and relief. The following picture is a section of a well-worn USGS topo map, showing a part of North Carolina’s Shining Rock Quadrangle, a quite mountainous area. Closely spaced contour lines show steep changes, whereas widely spaced lines show gradual changes. The spacing of the lines allows you to visualize changes in elevation and relief between them. The three circular lines you imagined drawing around the lake’s receding shoreline are essentially contour lines-closed loops running along a fixed elevation. Draw a third line all the way around the latest shoreline. Let’s further imagine the shoreline receded even more.Draw a second line all the way around the new, smaller shore line. Now, let’s imagine the lake’s waters receded somewhat.Imagine drawing a line all the way around the shore of a lake. ![]() ![]() These stain marks are essentially contour lines-lines forming closed loops running along a fixed elevation. Now, imagine the waters receding each few days, leaving stain marks periodically at each new lower water level around the increasingly-exposed hill. Imagine a hilltop completely covered in flood waters. Actually, you might call these lines "contour circles" because each such line is simply a closed loop that runs along a fixed elevation. Contour LinesĬontour lines depict elevation and relief on a map. Send us feedback about these examples.Announcement: My online Land Navigation course includes four hours of video instruction, and two downloadable PDF books, all for about the same price as a typical paperback book. These examples are programmatically compiled from various online sources to illustrate current usage of the word 'contour line.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. 2017 The Unisphere, a stainless steel globe with contour lines denoting elevation and crossed rings to suggest orbiting rockets, was built for the 1964 World’s Fair as a hopeful monument to unity, humanity, and space travel. 2018 Topographic maps, which hikers use, typically show major highways, trails, waterways, vegetation (such as forests and meadows) and contour lines that depict elevation. Jeff Halverson, Washington Post, 5 Mar. 2018 The next image shows the incredible pressure gradient (change in pressure over distance, revealed by contour lines called isobars). Ariella Gintzler, Outside Online, 11 Apr. 2019 The brand decked out its popular midcushion Launch 5 road shoe with a graphic of rope coils, nautical chart contour lines, anchors, and the aforementioned lobstahs. 2019 The workshop included instruction on everything from interpreting contour lines on a topographic map to how to adjust a compass to orient it to true north. Harish Pullanoor, Quartz India, 18 Dec. 2022 For sheer rhythmic movement, delicacy of contour line and limpid grace in form and texture, there is nothing to approach this piece. 2022 No one annihilates the contour line more effectively, so what seems blurry and incomprehensible demands a close look. Recent Examples on the Web Notice how the contour line values on the map below (which represent the height of the atmosphere) get lower and lower heading toward the Great Lakes.
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