EuroGraphics Lake and Mountains by Lawren S Harris 1000-Piece Puzzle.. Box size: 10" x 14" x 2.37". Finished Puzzle Size: 19.25" x 26.5". Discover the fine art of Lawren Harris who was a member of the Group of Seven who pioneered a distrinctly Canadian style in the early twentieth century. He was primarily known for his landscape images such as Lake and Mountains. Strong high-quality puzzle pieces. This superior quality puzzle will delight and educate all at the same time.