1.  Pocketknife or multi-purpose tool

2.  Personal first-aid kit

3.  Filled 1-quart water bottle or Camelback with water

4.  Flashlight with spare batteries

5.  Whistle

6.  Compass

7.  Matches (in waterproof case), or fire starter

8.  Sunscreen

9.  Waterproof jacket

10.  Trail food