Sheet name, sheet number, series name, scale, series number, edition number, index to boundaries, adjoining sheets diagram, elevation guide, declination diagram, bar scales, contour interval note, vertical datum, horizontal datum, grid reference box, special note, legend
A map is named after the most prominent cultural or geographical feature. Whenever possible, the name of the largest city on the map is used. The sheet name is found in bold print at the center of the top and in the lower left area of the map margin.
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a. Black - Indicates cultural (man-made) features other than roads.b. Blue - Identifies hydrography or water features such as lakes, swamps, rivers and drainage.c. Brown - Identifies all relief features and elevation, such as contours on older edition maps, and cultivated land on red-light readable maps.d. Green - Identifies vegetation with military significance, such as woods, orchards, and vineyards.e. Red - Classifies cultural features, such as populated areas, main roads, and boundaries, on older maps.f. Red-brown - The colors red and brown are combined to identify cultural features, all relief features, non-surveyed spot elevations, and elevation such as contour lines on red-light readable maps.
a. Measure center of mass to center of massb. Use the correct graphic scalec. Use the same side of the road, or river, etc, when measuring curve-line distance
a. True North - a line from any point on the earth"s surface to the North Pole. True north is usually represented by a line with a star at the apex.b. Magnetic North - the direction to the north magnetic pole, as indicated by the north-seeking needle of a magnetic instrument. Magnetic north is usually symbolized by a line ending with a half-arrowhead.c. Grid North - the north that is established by using the vertical grid lines on the map. Grid North is usually symbolized by the letters "GN" or the letter "y" at the apex.
A back azimuth is the opposite direction of an azimuth. To obtain a back azimuth from an azimuth: if the azimuth is less than 180 deg - add 180 deg; if more than 180 deg - subtract 180 deg.
When using a protractor, the inner scale is graduated in ______ while the outer scale is graduated in _________.
It is the angular difference between true north, grid north, and magnetic north and is located in the lower margin on most large maps.
It is an arc indicated by a dashed line that connects the grid north and magnetic north prongs. It shows the angular difference in degrees between grid and magnetic north for conversion.
Finding the location of an unknown point by successively occupying at least two (preferably three) known positions on the ground and on the map. point
The method of locating one"s position on a map by determining the grid azimuth to at least two well-defined locations that can be pinpointed on the map or the ground. For greater accuracy, the desired method of resection would be to use three well-defined locations.
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Due to the rotation of the earth, the stars seem to travel in a circle through the course of the night. But there is one star that is in almost exactly the same place in the sky all night long every night. What is this star?
a. Index - heavy lines; normally every fifth contour line is an index contour. Normally numbered at some point with the elevation of points along that line.b. Intermediate - the lighter contour lines falling between index contours.c. Supplementary - resemble dashes; show sudden changes in elevation of at least one-half the contour interval.
One key to success in tactical missions is the ability to move undetected to the objective. What are the four steps to land navigation?