SPARKS (Jan. 5)- Northern Nevada with hundreds of miles of trails and dirt roads is a Mecca for off roading. And it’s also home to Crawl Magazine, a publication dedicated to the hard core off road enthusiast.     Oddly enough wanting to improve the Jeep he was using for commuting led the current owner, John Herrick, into the off road world. “In September 2000 I needed something to drive back and forth to work,” he said. “I was living up in Washington and had a 110-mile commute through downtown Seattle. I wanted something other than a car so