LIST OF ILLUSTRATIONS. 



. PLATES. 



Eeport of C. White, M. D. 



Facing page — 



Plate I. General section in the Yampa District 19 



II. Geological map of a part of Northwest Colorado, sections 60 



Eeport of F. M. Endlich, S. N. D. 



Plate III. Section 1 73 



IV. Section 3 "" 74 



V. Section 2 81 



VI. Monuments in Wahsatch Group 82 



VII. Happy Family in White Eiver Caiion ' 85 



Eeport of A. C. Peale, M. D. 



Plate VIII. Geological map of area A 1(35 



I Fig. 1. Section on line A, B i 



IX. s Kg. 2. Section on line C, D v I68 



( Fig. 3. Section on line F, Q , ^ 



SFig. 1. View of the San Miguel Plateau from Lone Cone . ) 

 Fig. 2. View- of the Eoan or Book Clift's on Grand Eiver. . V 174 

 Fig. 3. View of the Little Book Cliffs ) 



XL Map of area B showing geology of Grand Eiver Valley, &c.. 17G 



t Section 1 ^ 



XII. < Section 2 ( 184 



( Section 3 ( 



Eeport of William H. Holmes. 



Plate XIII. The Sierra Abajo from the east Ipg 



XIV, Panorama from Abajo Peak looking north and west 190 



■j^y < Fig. 1. A glimpse of the Dolores Caiion ) 



) Fig. 2. Lone Cone from the southwest \ ^""^ 



XVI. The San Juan Mountains from Lone Cone, looking east 104 



Eeport of A. D. Wilson. 



fFig.L^ 

 I Fig. 2. I 

 Plate XVII <; ^ig. 3. [^Diagrams showing intersections of fore-sights in > q,q^ 



]Fig.4. f the primary triangulations 3 "" 



I Fig. .5. I 



IFig.e.j 



XVIII. Sketch from Station 115 298 



XIX. Sketch from Station 125 302 



XX. Profile sketch from Station 115 304 



XXI. Contour map 30g 



Eeport of G. E. Bechler. 



Plate XXII. Grand Hogback crossing the White Eiver 365 



XXIII. The Great Yampa Plateau 3G9 



XXIV. View on the Yampa Eiver 370 



XXV. Yampa Eiver Canon 371 



XXVI. View of Lily Park on Yampa Eiver 372 



( Protile across Yampa Plateau 1 



XXVII. < Profile of Yampa Plateau, showing Fox Creek depression. > 369 

 ( Profile from Lily Park to White Eiver below Powell's Park. ) 



IX 



