BLUE GRASS COUNTRY—Chris Weber of Moorpark is ready to go spelunking in south central Kentucky. Beneath the sandstone-capped ridges of Mammoth Cave National Park lies the most extensive cave system on earth, with more than 350 miles of passageway mapped and surveyed. Jim Weber sent the photo. Don’t forget to take your Moorpark Acorn on vacation and send the photos to the address on page 4.