June 4, 2021, Mark Twain Lake - The U.S. Army Corps of Engineers at Mark Twain Lake is excited to announce the annual Halloween Walk will be held Friday, October 15 and Saturday, October 16, 2021 at the Indian Creek Campground. Camping reservations for participants will open on July 7, 2021 at 9:00 A.M. CST. You must decorate your site to camp in the event area. Please remember this is a family-friendly event, so plan your decorating ideas accordingly. If you have any questions on this, please call us prior to reserving a campsite.