Hey Trish, thanks for submitting the list of essential items to carry out there.  I always take sunglasses and carry a bandana.  Bandanas have multiple purposes...a headband/sweat rag, a filter for water, and once I used one to wrap around my leg when I had a mountain bike accident and sliced my leg.  We always carry a first aid kit in case of emergencies, too.  Once in a remote area of the Grand Canyon ( Soap Creek) a friend sliced her finger deeply while whittling a stick.  We were able to treat her, but she still passed out.  The finger remained infection free.  I could give several accounts of backcountry experiences, but that's enough for now.  You just never know and should always be prepared.
Kelly - "roadrunners"