Jul 20 2002 U.S. National Park Service – Free entrance to National Parks today, Martin Luther King Jr. Day @ nps.gov Posted on July 20, 2002 by DealFinder Rating: 0 Posted By: Deals4mykids Views: 44 Replies: 0 List of participating parks, by state: http://www.nps.gov/findapark/feefreeparksbystate.htm Fatwallet.com Hot Deals