Mattawa is a 112-acre lake located in the town of Orange just south of Route 2. Depth averages 17 feet and maximum depth is 40 feet. The water is clear and of good quality with a transparency of 15 feet. The bottom type is predominantly gravel and sand. Aquatic weeds are scant. Historically, 15% of the lake’s volume has registered as trout water in the summer. The shoreline is 75% developed with year round homes and summer cottages. Two paved public ramps, both of which are on Lake Mattawa Road, provide boat access areas. Shoreline access is along Holtshire Road and by the boat access areas. Recreational usage in the summer is high, with swimming, fishing and sailing the most popular activities. There is a restriction on the size of the outboard motors (10hp or less). Fish Populations: smallmouth bass, pumpkinseed, bluegill, yellow perch, golden shiner, white sucker, brown bullhead, rainbow, and brown trout