BNSF Railway ES44C4 puzzle, based on an original photo by Joel Hinkhouse (photo copyright Joel Hinkhouse -- used with permission). Photographed at Abo, New Mexico, April 25, 2021.
Click here for more information about this photograph
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.