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Figure 4. Photograph 90-750-035. View west across southern Colorado to northern Arizona.  In the foreground is the Sangre de Cristo Mountains; beyond is the San Luis Valley ( a basin of the Rio Grande rift; Alamosa, CO is in the center of it); beyond is the snow covered range of the Brazos Uplift and to the right and beyond are the San Juan Mountains. The open desert is the Colorado Plateau with the San Juan River flowing away from us to join the Colorado River just upstream from Lake Powell. Beyond that is the barely perceptible Grand Canyon. The Basin and Range country lies beyond the Plateau. Near the upper right corner the mountains drop off to Salt Lake City.