© Michael C. Poulsen, Yellowstone Falls, Castle Rock, circa 1992, Oil on masonite, 77.5 x 31.5″, Gift of Eli Boyajian View Larger Image © Michael C. Poulsen, Yellowstone Falls, Castle Rock, circa 1992, Oil on masonite, 77.5 x 31.5″, Gift of Eli Boyajian booth2024-02-07T09:44:18-05:00Painting|