If there are any evergreens, break off some of the lower, inner, DEAD branches, they'll be dry (unless it's flooded) and will burn like they've been soaked in gasoline, I did this one time years ago while in the field with a former SF Ranger... apparently he was asleep when they covered this in his training, because he was amazed that I, a mere mortal, could get a fire going in the rain <img src="/images/graemlins/wink.gif" alt="" />.
Troy