Ellacoya State Park Ellacoya State Park is located in Gilford on the southwest shore of Lake Winnipesaukee, New Hampshire's largest lake. The 600 Gilford, NH State Parks Sawyer's Dairy Bar Gilford, NH Other Attractions William H. Seed, broker Gilford, NH Other Attractions Pepi Herrmann Crystal, Inc Gilford, NH Other Attractions B. Mae's Resort Inn & Suites Gilford, NH Businesses