Just off the Katy Trail near McBaine stands the McBaine Bur Oak, affectionately known as the Burr Oak Big Tree. Estimated to be between 350 and 400 years old, this majestic tree boasts a trunk circumference of 287 inches, a height of approximately 90 feet, and a canopy spread of 130 feet. As the largest bur oak in Missouri, it shares the title of national champion with a counterpart in Kentucky. Situated about half a mile from the Missouri River, it's believed that the Lewis and Clark Expedition passed within sight of this enduring natural landmark. Accessible via a short detour from the trail, the tree offers a serene spot to pause and reflect amidst the beauty of the Missouri River floodplain.