by Jeff Stupar
CSX Transportation (CSXT) Self Propelled Rail-Car puzzle, based on an original photo by Jeff Stupar (photo copyright Jeff Stupar -- used with permission). Photographed at Michigan City, Indiana, August 1, 2012.
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.