Follow the road that roughly parallels the eastern base of the Sandias before it trails off toward the northeast and Santa Fe, and you will discover a town called Madrid. Madrid was once a mining town, a ghostly place, a hippie haven and a byway for bikers. Lately, it has become a cool tourist destination that combines all of the the above aspects with day-trippers and European vacationers seeking an authentic Western experience. On Saturday and Sunday, May 16 and 17, the town will serve as the de facto site of the CrawDaddy Blues Fest. This grip of Cajun cuisine and brilliant blues commences at noon on Saturday and continues through Sunday night.