The village of Altmar is located on the Salmon River in Oswego County, New York, in the Syracuse metro area. Major attractions within 20 miles of Altmar include the Bridge House Museum, which features local history exhibits in a building along the Oswego River Canal and the Carriage House Museum, with history exhibits displayed in a former carriage house. Some of the businesses in Altmar are Solar Fibers & Recycling and Malinda's Fly & Tackle Shop and Lodge. One of the best places to visit when you are in Altmar is the Salmon River Fish Hatchery, where the spawning process can be viewed at various times from September to October and again in April.