Complex sentence: The STS trail is through the wild area, and is blazed with orange rectangles and passes beaver meadows, stone bridge abutments from the lumber railroads, and apple trees said to have grown from apple cores discarded by lumberjacks.
Split into simpler sentences: The STS trail travels through the wild area, and is blazed with orange rectangles. It passes beaver meadows, stone bridge abutments from the lumber railroads, and apple trees said to have grown from apple cores discarded by lumberjacks.