B Part of the USGS 7.5-minate topographic qaadrangle map of he Lonwer o in Fig.
ID: 152738 • Letter: B
Question
B Part of the USGS 7.5-minate topographic qaadrangle map of he Lonwer o in Fig. A1.2.2. On the topographic map, put a Fig. 13). We are going to build on what yous learned in part A to fieud the UTMcoodintes of a P'rismatic Spring the center of the bhoe oval represeeting then center 4931000mN 933 Grand Prismati Sprin Ex 930 512000mE 513000mE Figure A1.2.2 1. Regarding a first look at the map in Fig. A1.2.2 (a) What is the minimum easting on the map? EmE What edge of the map is bowaelh minimum casting (top. bottom, left, right)? 00 (b) What is the minimum northing on the map? oCOMN mN. What edge of the map bo minimum northing (top, bottom, left, right)? (c) Is the central meridian for this zone to the east (right) or west (left) of this map area? (Refer to Fig.15 assistance.) KOn 2. The yellow square that surrounds most of the map in Fig. A1.2.2 represents a horizontal area on the ground a Yellowstone National Park that is 1000 m by 1000 m (1 km X 1 km) in dimension. We can use a side of tha a bar scale (a) As accurately as you can, measure the length of a side of the yellow square on the map in cm; we'll use the name a3 for this map length. a3- Cin (b) We will use the variable name b3 for the ground distance along one of the sides of the yellow square-l ko- expressed in the same units as we used for a3. That is, b3 is the number of cm in 1 km. There are 100 am a 1000 m in I km.63- (c) The fractional scale of this map can be found by dividing 63 by a3-we'll call that result e3. The fracil /or ke 1/ That means that 1 length unit of any sort (em, for example) on the map represents e3 length unts of (cm) on the groundExplanation / Answer
2a) From the given photograph the length of the side of the map is 5 cm
b) The length of the side on map is 1km = 1000m =100000cm
c)fractional scale is 100000/5(b3/a3) =20000cm (e3)
1/e3 =1/20000 or 1: 20000
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