Chambers Island

Chambers Island, named in honor of Col. Talbot Chambers, is a 2,834 acre (4.428 sq. mi.) island in Green Bay, about 7 miles (11 km) off the coast of the Door Peninsula, near Gibraltar, Wisconsin. It is part of Door County.

Approximately 1/8 (12.3%) of the island's area is taken up by shallow 348.73-acre (1.4113 km2) Mackaysee Lake, in the northeastern part of the island. There is a smaller lake to the west of Mackaysee Lake called Mud Lake. There are two islands in Mackaysee Lake. The land area is 10.04 km² (3.8765 sq mi, or 2,481 acres). Since 1867, the island has been home to the Chambers Island lighthouse, which has been deactivated since 1961. The lighthouse has been the maintained at the 40-acre (160,000 m2) Chambers Island County Park since its commissioning in 1976.

The highest elevation on the island is approximately 55' above the lakeshore. In the southeast, Chambers Island narrows to a spit, called Hanover Shoal, which extends toward the shoreline of the Door Peninsula, from which it is approximately 5-mile (8.0 km) distant. The island has a small number of cabins. Other than the Chambers Island Lighthouse Park and 2 dirt roads, the entire island is privately owned, and landing at any other area is considered trespassing under Wisconsin law. No permanent population was reported in the 2000 census.