by Adam Weddle
Soo Line GP38-2 puzzle, based on an original photo by Adam Weddle (photo copyright Adam Weddle -- used with permission). Photographed at Oak Creek, Wisconsin, April 28, 2018.
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.