| No. | Item | Definition |
|---|---|---|
| 1. | ascent | an uphill climb |
| 2. | backpack | a bag carried on your back |
| 3. | bandage | cloth used to cover wounds |
| 4. | bear | a large wild mammal |
| 5. | bite | a wound from teeth or insects |
| 6. | blaze | a trail marker on trees |
| 7. | blister | a fluid-filled skin sore |
| 8. | bog | wet spongy ground |
| 9. | boots | sturdy shoes for rough ground |
| 10. | boulder | a very large rock |
| 11. | campsite | a place to camp |
| 12. | canopy | the upper tree cover |
| 13. | canteen | a bottle for carrying water |
| 14. | canyon | a deep narrow valley |
| 15. | carabiner | a metal clip with a gate |
| 16. | cliff | a steep rock face |
| 17. | compass | a tool showing direction |
| 18. | creek | a small stream |
| 19. | day hike | a hike finished in one day |
| 20. | daypack | a small pack for day hikes |
| 21. | dehydration | harmful loss of body water |
| 22. | descent | a downhill movement |
| 23. | desert | a very dry region |
| 24. | detour | a different route around something |
| 25. | drizzle | light steady rain |
| 26. | dune | a hill of blown sand |
| 27. | eagle | a large bird of prey |
| 28. | elevation | height above sea level |
| 29. | filter | a device cleaning water |
| 30. | first aid | basic emergency medical help |
| 31. | fog | a thick cloud near ground |
| 32. | footbridge | a bridge for walkers |
| 33. | ford | cross a shallow stream |
| 34. | forecast | a weather prediction |
| 35. | forest | land covered with trees |
| 36. | glacier | a slow-moving mass of ice |
| 37. | gorge | a deep steep-sided valley |
| 38. | grade | the steepness of a trail |
| 39. | hat | head covering for sun or weather |
| 40. | headlamp | a light worn on the head |
| 41. | hypothermia | dangerously low body temperature |
| 42. | jacket | an outer coat |
| 43. | junction | a place where trails meet |
| 44. | kindling | small sticks for starting fire |
| 45. | lake | a large inland body of water |
| 46. | landmark | an easily recognized feature |
| 47. | leave no trace | outdoor ethic of minimal impact |
| 48. | lichen | a crusty growth on rocks |
| 49. | lightning | a flash during a storm |
| 50. | loop | a route returning to start |
| 51. | map | a drawing of an area |
| 52. | marsh | wet low land with plants |
| 53. | meadow | an open grassy field |
| 54. | mile | a unit of distance |
| 55. | mosquito | a biting flying insect |
| 56. | mud | wet soft earth |
| 57. | navigation | finding and following a route |
| 58. | notch | a narrow mountain gap |
| 59. | out-and-back | a route returning same way |
| 60. | overlook | a scenic viewing point |
| 61. | pace | walking speed |
| 62. | pass | a route through mountains |
| 63. | peak | a mountain top |
| 64. | permit | official permission to enter |
| 65. | pine | a needle-leaved tree |
| 66. | plateau | an area of high flat land |
| 67. | poncho | a loose rain covering |
| 68. | pond | a small still body of water |
| 69. | rain | water falling from clouds |
| 70. | ridge | a long narrow hilltop |
| 71. | river | a large natural watercourse |
| 72. | route | the way to follow |
| 73. | saddle | a low point between peaks |
| 74. | scramble | a steep hands-and-feet climb |
| 75. | scree | loose stones on a slope |
| 76. | shade | shelter from direct sun |
| 77. | storm | violent weather with wind or rain |
| 78. | stream | flowing water in a channel |
| 79. | summit | the top of a mountain |
| 80. | sunburn | skin damage from sun |
| 81. | swamp | wet land with trees |
| 82. | switchback | a zigzag section of trail |
| 83. | talus | broken rock at a cliff base |
| 84. | temperature | how hot or cold it is |
| 85. | tent | a portable fabric shelter |
| 86. | terrain | the type of ground |
| 87. | tick | a small blood-feeding arachnid |
| 88. | trail | a path for walking outdoors |
| 89. | trailhead | the starting point of a trail |
| 90. | trekking pole | a walking support stick |
| 91. | underbrush | plants growing beneath trees |
| 92. | valley | low land between hills |
| 93. | water | drink needed to stay hydrated |
| 94. | waterfall | water dropping over a ledge |
| 95. | waypoint | a marked navigation point |
| 96. | weather | conditions of the atmosphere |
| 97. | whistle | a device for making loud signals |
| 98. | wilderness | wild natural land |
| 99. | wildflower | a flower growing naturally |
| 100. | wind | moving air |