COISTTENTS. 
Page. 
Abstract of the Monograph 1 
Chapter I. — General description of the topographic and geologic features of the 
Grand Canon district 9 
II. — The Mesozoic terraces upon the northern border of the district 26 
III. — A description of the Vermilion Cliffs and of the Vallea' of the Virgen. 51 
IV. — The Great Denudation 61 
V. — The Toeowb.ap Valleat and the middle portion of the Grand Canon 78 
VI. — The Uinkaret Pl.ateau 101 
VII. — A JOURNEA' FROM K.VNAB ACROSS THE DESERT TO THE KaIBAB PlATEAU AND TO 
THE BRINK OF THE CHASM 122 
VIII. — The scenery of the Grand Canon in the ICaibab division ahewed froji 
Point Sublime 140 
IX. — The amphitheaters of the Kaibab diahsion 157 
X. — Structural geologa' and evolution of the Kaibab Plateau 183 
XI. — The Paria Plateau and the Marble Canon Platforai 199 
XII. — Pha'sical History and evolution of the Grand Canon district 206 
XIII. — The excavation of the Grand Canon — corrasion and aveathering 230 
XIV. — The excavation of the Grand Canon — origin of the details of its erosion. 250 
LIST OF PLATES. 
Plate I.— Looking up the Valley of the Virgen. This illustration is from a sketch by Mr. Holmes. 
The strata across the riA'er shoAviug pale belted colors arc the loAver Permian. Be- 
yond them on the right and in the background is the Smithsonian Butte, composed 
of Triassic strata. The great Temples and ToAvers are not visible. Chromo-litho- 
graphed by Sinclair. (Frontispiece.) 
II. — A geological section across the platform of the Grand Canon district from the GrandWash 
to the Echo Cliffs. (Opposite page 10.) 
III. — A geological section from north to south through the Grand Caubu district from the Mar- 
k^gunt Plateau to the Aubrey Cliffs south of the San Francisco Mountains. (Oppo- 
site page 16.) 
rV. — Colored map on a small scale showing the distribution of the Eocene, Mesozoic, and Per- 
mian strata around the greater part of the central Carboniferous platform of the dis- 
trict. (Opposite page 28.) 
V. — The Pink Cliffs (Eocene) upon the southern end of the Paunsiigunt Plateau. Drawn from 
a photograph by W. H. Holmes. Wood-cnt. (Opposite page 30.) 
VI. — The Mesa Verde. Illustrating the general aspect of the Cretaceous strata in the heart of 
the Plateau Province. Eeproduced from a line draAviug by W. H. Holmes. His Ee- 
port in Dr. Hayden’s Ninth Annual Report of the Survey of the Territories. Photo- 
engraving. (Opposite page 32.) 
(xi) 
