Figures
Page [Frontispiece. Balanced Rock.] [1. Arches National Park] 6 [2. Rock art in Arches National Park] 11 [3. Wolfe’s Bar-DX Ranch] 14 [4. Rock column of Arches National Park] 21 [5. Common types of rock folds] 25 [6. Common types of rock faults] 26 [7. Paradox basin] 27 [8. Geologic section across northwest end of Arches National Park] 28 [9. Index map of northwestern part of Arches National Park] 28 [10. Gravity anomalies over Salt Valley] 31 [11. Tilted block of rocks in Cache Valley graben] 34 [12. Jointed northeast flank of Salt Valley anticline] 36 [13. Index map] 38 [14. Tunnel Arch] 43 [15. “Baby Arch”] 44 [16. Broken Arch] 45 [17. Double Arch] 47 [18. Pothole Arch] 48 [19. Glen Canyon Group] 53 [20. Navajo Sandstone cliffs] 54 [21. Mouth of Salt Wash] 55 [22. Southeast end of faulted Cache Valley anticline] 56 [23. Faulted Seven Mile-Moab Valley anticline] 58 [24. Three Penguins] 59 [25. Moab Valley] 60 [26. Faulted wall of Entrada Sandstone] 61 [27. Park Avenue] 62 [28. Balanced rocks on south wall of Park Avenue] 64 [29. Courthouse Towers] 65 [30. The Three Gossips] 66 [31. Sheep Rock] 66 [32. Petrified sand dunes] 67 [33. “Hoodoos and goblins”] 68 [34. Eye of The Whale] 69 [35. Intricate crossbeds in Navajo Sandstone] 70 [36. Cove Arch and Cove of Caves] 71 [37. North Window] 72 [38. Looking southwestward through North Window] 73 [39. South Window] 74 [40. Turret Arch] 75 [41. Parade of Elephants] 76 [42. Suspension foot bridge across Salt Wash] 78 [43. Delicate Arch] 78 [44. Fiery Furnace] 80 [45. Trail to Sand Dune Arch] 81 [46. Sand Dune Arch] 82 [47. Tower Arch] 84 [48. Skyline Arch] 85 [49. Campground in Devils Garden] 86 [50. View north from campground] 87 [51. Southeastern part of Devils Garden trail] 88 [52. Pine Tree Arch] 89 [53. Landscape Arch] 91 [54. Navajo Arch] 92 [55. Partition Arch] 93 [56. Double O Arch] 93 [57. Dark Angel] 94 [58. “Indian-Head Arch”] 95 [59. Geologic time spiral] 96
