Carroll County Conservation is inviting campers to celebrate Christmas in July this weekend. On Saturday, visitors to Swan Lake State Park are encouraged to adorn their campsites with all things Christmas, and participation is free for all campers who have paid their regular camping fees. Judging will begin at 8 p.m. with the best decorated sites receiving prizes. The public is encouraged to tour the campgrounds to view the entries. For more information about Christmas in July or how to take part, contact the Swan Lake Conservation Education Center at 712-792-4614.