Ogdensburg, city (1990 pop. 13,521), St. Lawrence co., N N.Y., on the St. Lawrence River at the mouth of the Oswegatchie, in a resort area, opposite Prescott, Ont. (with which it is connected by an international bridge); settled by French missionaries and trappers 1749, inc. as a city 1868. A variety of light industrial products are made there; two state prisons are important to the local economy. In the city is a museum with works of Frederic Remington, who lived in Ogdensburg.