Figure 106: Geographic Features.  Significant geographic features described in this chapter are shown above. Two lakes, Grand Lake and Hopi Lake, which may have existed in the past, are superimposed on today’s terrain, shown in nearly true color. The white oval encloses the high Kaibab Plateau, which extends slightly south of the Colorado River. The circle marks the north half of Marble Canyon, about a dozen barbed canyons, the funnel, and parts of Echo Cliffs and Vermilion Cliffs. All will be discussed later. The dashed line marks the western boundary of the uplifted, roughly circular Colorado Plateau.