Mortenson Law Office Address: 32 E Main St, Fort Pierre, SD 57532 Phone: (605) 223-9040 Hours: Mon: 9am-5pm Tue: 9am-5pm Wed: 9am-5pm Thu: 9am-5pm Fri: 9am-5pm Lawyers Other Businesses: Draper Holding Co Inc at 1204 Yellowstone St, Fort Pierre, SD 57532