While this list contains an extensive number of items, it is only a reference for potential things you may wish to carry.  There are surely some items not listed here.  Some of the items are very important and some are only necessary for extended duration trips.  It's up to you to decide what you will and will not carry.  This is just a good reference to go through before you head out into the great outdoors.  Remember, being prepared can make the difference between getting stranded and getting home.