1. What is the contour interval of the map?

2. What is the difference in elevation between index contours?

3. What is the elevation of the highest contour line at the top of the eastern Twin Butte?

4. What do the dashed blue lines represent?

5. What do the gray lines around and between the Twin Buttes represent? (thick lines)

6. At the time this quadrangle was printed, what was the difference (in degrees) between true north and magnetic north for this map? ___ degrees

7. Using the graphic map scales, determine the maximum width of the eastern Twin Butte (use the 6100' contour to be the outer edge of the butte). ___ feet ____ kilometers