If you're ever in a place where you can't figure your direction based on surroundings, you can always use the North Star (or Polaris, as its official name goes) to get yourself oriented.
First, you have to find the Big Dipper. If you need help with that, check the link below, and we'll get you there.
Once you have the Big Dipper, find the two stars that make the forward edge of the cup. If you draw a line from the bottom star, through the top star at the lip of the cup, follow that line for about 2 fist-lengths and you'll arrive at the North Star.
Find The Big Dipper & North Star