The city of Claremont is located in western Sullivan County, where the Sugar River joins with the Connecticut River. Claremont is best known for its historic architecture from its manufacturing past when the area produced cotton and wool textiles, machinery, and paper. You can admire the city’s historic buildings as you stroll by the Claremont Opera House, City Hall, and old mills. Other attractions include the first Roman Catholic Church in New Hampshire, Old Saint Mary’s Church. Outdoor activities like hiking, mountain biking, and skiing are available in Moody Park, Arrowhead Recreation Area, and the Sugar River Recreational Trail.