Ashumet Pond is a 203-acre natural kettlehole pond with an average depth of 23 feet and a maximum depth of 65 feet. The ponds water sources are groundwater and an inlet from an abandoned cranberry bog. Transparency is good, averaging about 12 feet, but aquatic vegetation is sparse. The water color is generally clear, like most Cape Cod Ponds, but algae blooms in the summer may give the water a greenish tint. The pond is located just south of the Massachusetts Military Reservation (Otis Air National Guard Base) and is divided by the town line between Mashpee and Falmouth. The 2.5 miles of shoreline are heavily developed with year round homes. At low water levels, there is an island in the southern end of the pond. Access: To get to Ashumet Pond from the Bourne Bridge, take Route 28 south to Route 151 east, then take a left onto Sandwich Road. The ramp is on the east side of the road near the intersection of Currier Road and Sandwich Road. A paved boat ramp with ample parking is provided by the Public Access Board and maintained by the Division of Fisheries and Wildlife. yellow perch, banded killifish, smallmouth bass, largemouth bass, eastern brook trout, rainbow trout, alewives (illegally stocked and not a self sustaining population), brown bullhead and one large brown trout. The pond was last surveyed in July of 1999 and good populations of smallmouth bass, yellow perch and rainbow trout were noted. Fishing: Ashumet Pond is stocked in the spring and fall with rainbow and brook trout and is also a good smallmouth bass pond. Trout fishing is good in the spring and fall with holdover trout taken during the summer.