The current 346 square miles of Petrified Forest open a window on an environment more than 200 million years old, one radically different from today's grassland. Where you now see ravens soaring ...

The W.A. Gayle Planetarium, 1010 Forest Ave., Montgomery, is open to the general public for screenings on Saturdays. In April and May, scheduled shows include: "Perfect Little Planet" at 10 a.m. and 1 ...