Railroad Crossword
Once you have the words filled in, substitute the letters for numbers as follows:
North: 7 across (5th letter), 2 down (1st letter), 4 across (4th letter), 5 down (3rd letter), 9 down (1st letter), 8 down (1st letter), 15 across (3rd letter).
West: 6 down (8th letter), 10 across (5th letter), 1 across (4th letter), 12 across (1st letter), 11 across (1st letter), 14 across (1st letter), 13 down (2nd letter).
You can check your answers for this puzzle on GeoChecker.com.