Land of lunkers.   Big Mantrap Lake is best know for its muskie population. Fish up to 30 pounds roam the cabbage-weed bars and sunken islands.          The lake also produces excellent catches of northern pike, largemouth and smallmouth bass and baskets full of panfish - even the occasional walleye.     When you're casting for those muskies, anything can happen. Records of 10-12 pound northerns, five-pound smallmouth, six pound largemouth and even 17" crappies. No doubt about it--the fishing's great at Mantrap!   Mantrap Lodge 20725 Jewel Drive 20725 Jewel Drive, Park Rapids, MN 56470 218-732-5405 1-800-424-0901 mantraplodge.com