ILLUSTRATIONS. 207 
FIGURES. 
FieurE 1. Section across Mississippi Valley between St. Paul and Fort Snell- Page. 
ing, Min 11 
2. Diagram Se ta lear rise of the rocks in the vicinity of 
Minneapolis, Min 17 
3. Di showing pro sae origin of many kettle holes 29 
4. Section of Buffalo River delta, Minn 34 
5. Section of Herman beach ridge west of Magnolia, N. Dak. ......- 39 
6. Gingko leaf 58 
7. Diagram of Glendive anticline, Mo 
8. Sun-bleached skull near Miles City, a ont 70 
9. Diagram showing the thinning out and coming in of formations 
from Black Hills, 8. Dak., to Billings, Mont 75 
. Monument built by sheep herdes 77 
11. Eagle sandstone north of Park City, Mont 83 
12. Cross section to illustrate the change in the formations between 
Terry and Livingston, Mont.........-..---------+------------- 
13. Cross aie showing the rim of the mountains south of Livingston, 
Mon 
jo 
Oo 
89 
14. eye showing the structure of Cinnabar Mountain, Mont...... 93 
15. Dike ong coal bed and sill intruded in a position to an the 
of the coal 95 
16. vata fold in Madison limestone west of Chestnut, Mont.......- 96 
17. Upturned Madison limestone and associated rocks, forming the 
Bridger Range, Mont.....-...--------------++---0e2crere cee 98 
18. Southeast side of the great synclinal basin north of Logan, Mont.. 99 
19. Diagram to fess the course of Jefferson River west of Willow 
Crdeke, MONG. oi. .<csaenc ian sne se een whee Snel eran e e+} 101 
20. Section of ae eT fold near Lime Spur, Mont ..-.--------- 102 
21. Diagram of braided st oe 
s of Cae 1 Divide east of Butte, Mont 107 
23. Diagrams illustrating the ways in which the broad valleys of the 
Rocky Mountain region were formed......-------------------- 112 
24. Sections along Northern Pacific Railway between Durant and 
Drummond, Mont., showing probable mode of formation of Deer 
Lode Vallay: 3-2 0-522- 5 oe ae he oe ee et aes 115 
25. Section between Logan and Trident, Mont......--.------------- 116 
26. Faulted fold at Trident, Mont........-------------------+-+++"- 117 
27. Fold and fault in the rocks near Lombard, Mont-...-...---------- 118 
i of fold west of Drummond, Mont....---.---------------- 129 
28. 
29. cere beach goers “a Mount Jumbo, as seen from railway sta- 
at Missoula, Mont..........---------+------ 2-2 ener eee: 134 
30. aelaat faults and pone ee a is oo nce anne sets o% 
31. Great folds in the rocks between ea and Thompson Falls, Mont. 144 
32. Profile of mountain slope east of Sandpoint, Idaho. ..-..--------- 1 
Creek 
33. Cross-bedding in glacial gravel on Latah 1 mile west of 
Spokane, Wash . ....-..----------------- 2-02-22 c erent 160 
34. Island of gneiss or schist in the lava near Marshall, Weak, .o-..... 16% 
35. Section of Yakima Valley east of Prosser, W: re 170 
36. Fold in basalt north of Roza, Wash-....---..-------------------- 176 
37. Section showing structure of Yaius basalt north of Ellensburg, oe 
a is ee weet oe 1 
38. Section showing size sol monk the valley of Green River below 
— e Gorge, Wash., ene aD with the valley the river aban- ae 
