by Paul Sykes
Copper Basin Railway GP39-2 puzzle, based on an original photo by Paul Sykes (photo copyright Paul Sykes -- used with permission). Photographed at Hayden, Arizona, September 29, 2017.
The "Easy" version of the puzzle has about 100 pieces, "Medium" has about 200 pieces, "Hard" is about 300 pieces. For the Online puzzles, see the Online Puzzle Tips.