Richardson Adventure Farm in Spring Grove, Illinois rolls out a monumental tribute for the 2026 autumn season with a breathtaking layout honoring America's 250th anniversary. Recognized as the "World's Largest Corn Maze," this sprawling 28-acre labyrinth features nearly ten miles of winding trails divided into four smaller mazes and three wooden observation bridges. The intricate aerial design brings historic American iconography to life in the towering stalks, showcasing three Founding Fathers signing the Declaration of Independence alongside bold lettering spelling out "USA 1776" and "Richardson Farm". Explorers can weave past a majestic bald eagle soaring over an original 13-starred American flag and navigate bursts of fireworks streaming from a giant star emblazoned with "250". Families and adventurers can tackle five interactive maze games before heading out to enjoy over thirty festival attractions, including a 700-foot zip line, ORBiting rides, live pig races, giant slides, a pumpkin patch, and fresh cider donuts. To plan your next seasonal visit or check out upcoming holiday tree farm hours, visit Richardson Adventure Farm.