This is the opening to "A Close Call - Book 1: A New Beginning":
"What the shit am I doing here?" Doug Holmes thought as he struggled to his feet. "Naked and in the middle of a desert of sorts. I've got to get some shelter before I suffer fatal heat stroke! I'll worry about other things later."
I'm looking for other Time Travel stories in which the time traveler goes back in time and when they get there (Wherever "there" and "when" happen to be, he or she has no modern weapons, no modern inventions that give them an advantage.) Traveler must rely on wits and skills to cope. Bonus if the time traveled to is in 1800s in U.S. east of the Mississippi.