How to read a Topographic Map . By: Shauna Lilienthal . http://libremap.org/data/state/minnesota/place_name_results /. Table of Contents. Introduction What is a topographic map Contour and Isolines Scale Symbols The map of Mora Reading the scale Reading symbols
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The map of Mora
A topographic map is a zoomed up area. It is created by isolines showing the earth’s elevation. Contour lines are line points above sea level.
A general thing to remember is that you can tell how steep a place is by looking at the contour lines. Lines close together resemble somewhere that is steep. Lines farther apart resemble places that are not so steep. This arrow is pointing out a place where there is quite a bit of space, resembling that that place is not so steep.
Another thing to remember, is that whenever a line crosses the path of a river, it automatically points upward. That shows where valley’s are at. It makes a “V”.
To find out more symbols, you can find “symbol pages”. Pages with symbols will differ, depending on where you find them at. The previous page was an example of what some of them look like.
Here is a topographic map of Mora, MN.
Taking what we learned, we will look at specific locations in the map of Mora. I will point out different areas, following symbols, lines, ect.
Another thing still yet to mention is Township and range. The purpose of township and range is to give land a government setting and a means to sell land from it. The system by which it is measured by is from the United States Public Land Survey. It is divided by the latitude and longitude line. A square, 6X6 miles long, equals one township. The range is measured from east to west.
T 1 N
T 1 S
The little orange boxes would keep adding up. You would keep counting them by T1N, T2N, ect. Then you go from side to side to figure out the range. The blue box would be T1S RSE.
To make it even more specific, each square is cut off into 1/4ths. Then you add direction to them. NW ¼. That would mean it is the top, left corner.
To describe a township, you start from the littlest factors and mount up to the biggest factors.
EXAMPLE : NW ¼, Section 32, T15, R21W
However, if you wish to find one on a topographic map, you would follow them backwards: from the largest to the smallest.
On the corners of topographic maps are little red numbers and letters showing the township range that topographic maps cover.
Within the squares are little red numbers representing the numbers as you move from square to square. If the numbers are in sequence, 34,35,36, ect That means it is the same townships. When the numbers jump you have moved to a new range.
SW ¼, S 36, T41N, R24W on the Mora map.
Here are the ranges. We want R. 24W
Once you find section 36, mentally square the section off into four even corners. Then we would look to the South-West ¼. We have found Hillman Baptist Church!
McCreery, Scotty, Water Tower Town. Clear as Day.
Interscope records, 2011.
Everything written was learned from Professor Knapp’s Physical Geography