  - A. 95
Map by the U. S. War Department, 1868. Supplied by the courtesy of General Mackenzie, U. S. A., showing the knowledge of the Colorado River basin just before Major Powell began operations. The topography above the junction of the Green and Grand is largely pictorial and approximate. The white space from the San Rafael to the mouth of the Virgin is the unknown country referred to in this volume which was investigated in 1871-72-73. Preliminary maps B, C, and D at pages 244-46, and 207 respectively, partly give the results of the work which filled in this area. - B. 244
Preliminary map of a portion of the southern part of the unknown country indicated by blank space on Map A, at page 95, showing the Hurricane Ledge, Uinkaret and Shewits Mountains and the course of the Grand Canyon from the mouth of Kanab Canyon to the Grand Wash. The Howlands and Dunn left the first expedition at Catastrophe Rapid at the sharp bend a few miles below the intersection of the river and longitude 113° 30', climbed out to the north and were killed near Mt. Dellenbaugh. - C. 246
Preliminary map of a portion of the central part of the unknown country indicated by the blank space on Map A, at page 95, showing the Kaibab Plateau, mouth of the Paria, Echo Peaks, House Rock Valley and the course of part of Glen Canyon and of Marble Canyon and the Grand Canyon to the mouth of the Kanab Canyon. El Vado is at the western intersection of the 37th parallel and the Colorado River, and Kanab is in the upper left-hand corner of the map—just above the 37th parallel which is the boundary between Utah and Arizona. The words "Old Spanish Trail from Santa FÉ to Los Angeles" near El Vado were added in Washington and are incorrect. The old Spanish trail crossed at Gunnison Crossing far north of this point which was barely known before 1858. Preliminary map of a portion of the northern part of the unknown country indicated by the blank space on Map A, at page 95, showing the course of part of Glen Canyon, the mouth of the Fremont (Dirty Devil) River, the Henry (Unknown) Mountains, and the trail of the first known party of white men to cross this area. The Escalante River which was mistaken for the Dirty Devil enters the Colorado just above the first letter "o" of Colorado at the bottom of the map. The Dirty Devil enters from the north at the upper right-hand side. E. 250 Showing results of recent re-survey of part of the Grand Canyon near Bright Angel Creek by the Geological Survey with ample time for detail. Compare with Map C at page 246—the south end of Kaibab Plateau. line drawing: petroglyhs
line drawing: tipi
line drawing: boats on water
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