Topographic Maps. Practice Packet. Block: Name:

Transcription

1 Topographic Maps Practice Packet Name: _ Block: _

2 / Map Elevation Exercise Identify the elevation of each point identified on the map above. A:, D: _ B: _ E: _ G: B: c: _ F: _

3 Identify tbe elevation of eacb point identified on tbe map above. A: ' : c: _ D:, _ E: G: H: _ F: _ \J

4 ~..' 6. NA~E... CLASS D HF < o. UNIT I: TOPIC 3. TOPOGRAPHY (ClntinlledJ RElA TED QUESTIONS 1. The questions below refer to the accompanying topographic map. I, / o 1 2 ScalI of Ills (8) What is the contour interval?. (b) What does the symbol at C indicate?. (c) What is the elevation of the inside contour line at C?. (d) What.is the feature shown at A?. (e) What does the symbol at B indicate?. 45

5 IfI In ~hal general drrecuon b Thomas Cree], Ih)\\ Ing hl!l\\.:.:n 1I.11l\.!@. (gl What is the gradient of Roger Creek between contour lines and F: ( (hi Which orlh~'three streams shown flows the fastest'? 2. State the meaning, of each of the following map-scale ratios: I., (a) 1:62, I". (b) 1:500, Express the following map scales as ratios and fractions: (a) One inc~ to twenty miles:. (b) One inch to feet. 4. Using a scale of one inch equals one mile and a contour interval of 20 feet. draw in the space' below a contour map of an island in the ocean which is 5 miles long (cast to west) and 2h miles wide. The island is steepest on the west side, rising there to a single hilltop' which has an altitude of 185 feet. Show a stream, whose source is at an altitude of 155 feet, flowing southeast to the sea. Indicate a depression over 20 feet deep whose surface edge is located between the 60- and the 80-foot contour lines.

6 ACTIVITY 6.13: Interpreti~s Contou~ Lln~s Objective: To interpret topograp~y fro~ contour Ilnes on 3 ma~: Materials: Map on the follow~ng page and wr~ting ~nstrument. Procedure: Referring to the contour map on the next page, answer the following.questio~s. 1. What is the contour interval of the map? How did you determine this? 2. Which side of the Nile River is steeper? How can you tell this? 3. How many hilltops are on the map? How is a hilltop represented? 4. What is the feature at D? 5. Give the elevations for the points listed by lett~r. (If the letter is on the contour line, give the exact elevation; if it is between, give the minimum and maximum, e.g., ) A o G B E H C F I 6. Which direction do the following streams flow? (general trend) Silver Creek Nile River Don't Know Creek Which rule did you use to determine these directions?

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8 Chc1pter ACTIVITY 6.15: Gradient Problems Objective: To calculate the gradient of various points in given situations. Materials: Writing instrumenta Procedure: Using the formula below, calculate the gradient in the following problems. Gradient Difference in elevation between points straight line difference between points 1. The distance between two points is 4 miles, and the difference in elevation is 30 feet. 2. The distance between two points is ~ mile, and the difference in elevation is 30 feet. 3. The distance between two points is 0.7 miles, and the difference in elevation is 150 feet. 4. The difference in elevation is 95 feet, and the distance between two points is 2.46 miles. 5. The difference in elevation is 0, and the distance between two points is miles.

9 MAP SKILLS TEST AN ARCHEOLOGICAL EXPEDITION The accompanying map is the field map you used on an archeological expedition. What follows is a narrative of what your team of researchers did in the field area illustrated by the map. Read this carefully and do exactly what it tells you to do. Some answers will g_o on the map. others on a separate answer sheet. Put your name at the top of the map to complete the Quadrangle name. Put your name on the top of your separate answer sheet.' Test questions are numbered within the narrative. Most of your answers will go on the separate answer sheet. Only put answers on the map if directed to do so. Your team arrived at the base camp via a dirt road. You will find this camp in the eastern part of R 1. Estimate your approximate elevation at this point (1). This is a time to get oriented with the field area and its features. You begin studying the map. What is the contour interval? (2) How many degrees, minutes, and seconds of latitude are shown? ( 3) How many degrees, minutes, and seconds of longitude are shown? (4) Name the adjacent map quadrangles in the following order: S, SE, E, NE, NW, W, SW (5-12). What is the latitude of the top edge of the map? (13) What is the longitude of the western edge of the map? (14) What is the scale of the map? (1 5) Is this map in the northern or southern hemisphere? (16) Is this map in the eastern, or western hemisphere? (17) (Bonus: Give the specific location of this map.) Now you are ready to begin your trek. You begin hiking southeast and notice a stream on the map running nearly parallel to the trail. It is Seahawk Creek. Draw and arrow on the map showing the direction it is flowing (18 on the map). There is another stream flowing parallel to your trail to the southwest. Name this one after yourself (19 on the map). What is the stream gradient for the stream with your name? (20) As you continue up the stream valley the trail begins to follow the bank of the stream with your name. You cross this stream at the 7300 ft contour. Are you about to enter the flattest, or the steepest part of your journey? (21) Not far from the trail you discover a cave and mark it's location on the map with the letter C. In this cave you discover a burial site. There are bones wrapped in the tattered remnants of a woven cloth. The site is on tribal property, so you only take photographs to show the leaders of the local tribe. You will seek their permission to clip a sample of the woven cloth for carbon-14 dating analysis. You record the latitude and longitude of the cave in you field book including degrees, minutes, and seconds (22 ). Just above the 7500 ft contour, three members of your team head southwest and eventually discover an Anasazi ruin. It is almost 'dark and the three decide to camp. They awaken as the sun brightens the inside of their tent. Indicate your camp site location on the map and record it's latitude and longitude (23). Estimate the elevation of the ruins (24). After photographing the site and noting any impressive features, the three move eastward. In the afternoon they cross a stream. Draw an arrow on the map indicating which way the stream is flowing (25). Meanwhile, you and five others have set up a second base camp, or meeting place at the trail crossing. Three of your party go north and discover an interesting feature and loop around it. How would you describe this feature? (26)

10 You and the two remaining researchers head south toward the 7600 ft contour. You set up a camp near the benchmark at the top of the hill in order to send a radio transmission for a pick up at the first base camp. What is the elevation stamped on the benchmark? (27) The next morning all teams head back to the second base camp, and then continue on to the first base camp. How far are the two base camps apart? ( 28) The teams arrive at the base camp with enough daylight to make dinner and then build a fire. Your team spends the. remainder of the evening exchanging stories about what each discovered. In the morning, while you wait for the pick up, you complete one more task - constructing topographic profiles of the field area. You split up the duty between the group members.. Your profile is (use the appropriate profile sheet provided). Your trip (and test) is completed.

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15 Reading Contour Maps Objective: to use contour lines to compare elevations and describe landforms An elevation map shows how high above or below sea level places are. Sea level is the level c}f the ocean's surface. from which elevation and depth are measured. Many maps use contour lines to show elevation. Each line is labeled with a number telling how many feet (or meters) above sea level it represents. All the places along the line are at the same elevation. For example, in Diagram 1 the line labeled 1500 feet runs all around Knob Hill at 1500 feet above sea level. The closer together the lines are, the steeper the slope of the land. Diagram 2 shows the view of the elevation of Knob Hill from above. P'---" Use Diagrams I. 2 and 3 to answer questions 1-8. I. How high is Knob Hill? a ft b ft c ft d. over 2500 ft 2. What is the elevation of the valley west of Knob Hill? a. sea level b. about 500 feet 3. Which side of Knob Hill is steeper? a. east b. west c. about 1500 feet d. below sea level Diagram 1 View of Knob Hill Looking North Diagram 2 Elevation Map of Knob Hill " f " f 4. When contour lines are close together. what kind of slope do they show? a. a steep slope b. a gradual slope Diagram 3 Elevation Map of Mystery Park 5. When contour lines are widely spaced. what do they show? a. a high hill b. a deep valley c. a gradual slope d. a steep slope 7. Write one reason why you chose your answer for question 6../ 6. What type of land feature is shown at point A in Diagram 3? a. a hill b. a mountain c. a valley d. a cliff 8. Compare Diagram 2 and Diagram 3. Which map shows the higher lands? 10 ISTERPRETING SYMBOLS

16 UK Elevation Map 1 to answer questions Use Elevation Map 2 to answer questions Elevation Map Which point on the map is below sea level? a. point A b. point B c. point C 9. What is the elevation of point A? a.3500ft c.2500ft b ft d.4000 ft 10. What is the highest level shown on this elevation map? a ft b ft c ft d ft 11. There is a tunnel in one of the mountains. At what elevation has the tunnel been dug? a. about 2500 ft c. about 1500 ft h. about 1000 ft d. about 2000 ft 12. What is the elevation of point B? a. between 2500 and 3000 feet h. between 2000 and 2500 feet c. between 1000 and 1500 feet d. between 1500 and 2000 feet 13. At what elevation does the river start? a ft c ft b ft d, 2500 ft 14. What would you see if you were standing in the center of the southern edge of the map looking northward? a. r'-i b. ~ -::c~. ~..,. ( 16. Which slope of the hill is 'steepest? a. southern slope h. northern slope c. eastern slope d. western slope 17. How much higher is point A than point B? a about 1000 feet higher h. about 600 feet higher c. about 3300 feet higher d. about 2700 feet higher 18. Which slope of the hill is the most gradual? a. southern slope c. eastern 510 h. northern slope d. western slope 19. What would you see if you were standing at the southern edge of the map looking north~d?.. " a.~b.~ ~~ 4C.~ ~ 20. If you hiked from point C to point B, how would you describe your hike? a up a steep slope of several thousand feet h. down a gradual slope of several hundred feet c. up a gradual slope of a few hundred feet MAKING GENERAUZATIONS 2.

17 .I EXERCISE 3: TopovapIaiuJ FeiUwa NOTES: ~ ~ ~ ~ I A very important pan of using a map and compass is to be able 10 look al a map and visualize what those features look. like 00 the ground. Malch the- features on Ihe right with the correct feature on the ten, S. A. B. C. D. E. (~ ~$J~ ~~ ~ Now match the (ollowing descriptiod with the correct F. ~ feature Has two peaks of equal height with a saddle- in between. Has a crater in- the top. Has a gradual slope on the west and a steep slope OD the east, Has two peaks with the west peak being two intervals higher than the east, A nice, gradual hill A. B. c. D. E. F.

18 Name ~~ ~ Measuring Distance in Miles '\. /1 To the right is a map of South Carolina. Use a ruler to measure the distance from point to point for each question. Multiply the number of inches by the number of Anderson miles each inch represents. Circle the letter of the correct answer. r I I I I o Miles Columbia Hampton. Walterboro _...Charleston The distance from Columbia to Charleston is about (a) 110 miles, (b) 160 miles, (c) 320 miles. <) The distance from Greenville to Charleston is about (a) 150 miles, (b) 200 miles, (c) 290 miles. ~" The distance from GreenvilJe to Spartanburg is about (a) 30 miles, (b) 70 miles, (c) 120 miles. 1. The width of Lake Moultrie at its widest point is about (a) 5 miles, (b) 10 miles, (e) 30 miles. J. The length of South Carolina at its longest part (A to C) is about (a) 200 miles, (b) 280 miles, (c) 370 miles. 6. The width of South Carolina from point B to point D is about (a) 200 miles, (b) 225 miles, (c) 275 miles. 7. The distance from Anderson to Walterboro is about (a) 120 miles, (b) 160 miles, (c) 90 miles. 8. The distance from Columbia to the northwestern tip of Lake Marion is about (a) 15 miles, (b) 25 miles, (c) 30 miles. 9. The distance from Hampton to Charleston is about (a) 70 miles, (b) 100 miles, (e) 40 miles. 10. The distance from Chester to Orangeburg is about (a) 55 miles, (b) 135 miles, (c) 85 miles. Extra Activity: Find a map of your Slate in an atlas. Measure your state at its widest and longest points. Make a chan giving the statistics of your state in length and width in miles. Measure one geographical feature of your state, such as a lake, a river, or a mountain range. Give the approximate size of this feature. \ I. W(5Jon W:alch. Publish..r SEcnoN 7: 5cAL AND DIsTANCE

19 _.._-... r,. Name Date _ Measuring Distance in Kilometers Study the map of Central America. Use a ruler to measure the distance from point to point for each question. Multiply the number of inches by the number of kilometers each inch represents. Write the answer on the line. 1. How many kilometers are there to the inch 5. How long is the Panama Canal in kilornein this scale? ters? 2. How many kilometers is it from point A to 6. What is the length of Lake Nicaragua in point C? kilometers? 3. How many kilometers is it from point B to 7. What is the distance from San Salvador to point D? San Jose in kilometers? 4_ How many kilometers is it from Tegucigalpa 8_ What is the distance in kilometers from to Managua? Guatemala City to Belmopan? Belmopan. Guatemala City Teguclgalpl ~::I:~I Man"\ ~'m'" H Kllometel'l Extra Activity: Find a map of Texas that shows the scale in kilometers. Measure Texas from east to west and from north to south at the widest and longest points. Is the width of Texas greater than the length of Cen tral America? Is the length of Texas greater than the length of Central America? ""',"',... t(''''- t,.' & _ '0' I_L. n '- 1=_'- c, SEcnON 7: ScAU AND DISTANCE