Big Sky NAVHDA Training Days 2014 The following is our tentative schedule for training days for this spring: April 5, 2014- Muddy Dog Ranch, Great Falls April 19, 2014- Muddy Dog Ranch, Great Falls May 3, 2014- Muddy Dog Ranch, Great Falls May 17, 2014-Muddy Dog Ranch, Great Falls Muddy Dog Ranch is North of Great Falls, take Bootlegger trail to Wilson Road and turn west (left off Bootlegger) and go about 3 miles. Watch for the dog silhouette on the right. Additional training days for summer with additional locations will be posted later after member input at these training days.