Contact Us Get in Touch with Our Leasing Team! Grindstone Canyon 3101 Old U.S. Highway 63 South, Columbia, MO 65201 Text or Call: (573) 271-2967 Monday-Friday: 9:00 a.m.-6:00 p.m.Saturday: 10:00 a.m.-4:00 p.m.Sunday: 12:00 p.m.- 4:00 p.m.