34.37 3438 3484 Taasa 35 11 12 3640 14 23 3445 13 36 3384 BM 3395 GM Coulee 30 M 3397 3342 Blackfeet 3358 23265 (306 Sheffels MISSOURI 30 31 33 3408 16. 3400 3309 ва co Dain D 3342 tanse Gulch 16: P 348 29 3367 28 3410 36 3430 2400 3339 3407 FIGURE 8.6 Portage, Montana 0 1 2 ° 1/2 1 2396 32 Boxelder 3205 3243 B 35 RIVER CASCADE CO CHOUTEAU CO BELT 320 24 39 7:2000 3200 3262 Salem Sch 3306 330 3316 3346 3307 333 North HIGHWOOD 3 kilometers 34% 2 milee SCALE: 1:62,500 Creek 25 3143 Elevator PACIFIC Salem 3353 34 AND 35 36 3439 вм ROAD 73526 CONTOUR INTERVAL 20 FEET DATUM IS MEAN SEA LEVEL MONTANA QUADRANGLE LOCATION 2916 3.5 3.0- 2.5 2.0- 1.5 A.O A.5. 0.5 mile B.O 1.0. Figure 8.7 Stereogram of the Missouri River in the vicinity of Portage, Montana. (Courtesy of U.S. Geological Survey)
1. Compare the stereogram in Figure 8.7 to the map in Figure 8.6. Then, on the topographic map, outline the area shown in the photo.
2. Is the terrain in Section 14, located on the west side of this map, relatively flat or hilly? Explain.
3. Label the areas that topographically resemble Section 14 on the topographic map as "upland."
4. Describe the topography in the lower half of Section 17, located three sections east of section 14.
5. Section 17 contains a portion of the valley occupied by the Missouri River. Approximately what percentage of the area shown on the map is stream valley (similar to the lower half of Section 17) and what percentage is upland?
6. Which of the following best describes the shape of the Missouri River Valley along the line labeled D.-D': wide valley with a floodplain or steep-sided V-shaped valley with no floodplain?



Step by step
Solved in 2 steps with 1 images









