Rock Island
45°25′N 86°49′W
Rock Island is a mostly wooded island off the tip of Wisconsin's Door Peninsula at the mouth of Green Bay, in Door County, Wisconsin. 8 km) wide. It rises to 65 meters above Lake Michigan, making it the highest in elevation out of all the Potawatomi Islands.

Terrain
45°25′N 86°49′W
Overview
Rock Island is a mostly wooded island off the tip of Wisconsin's Door Peninsula at the mouth of Green Bay, in Door County, Wisconsin. The 974.87-acre (394.5 ha) island is approximately 1.6 miles (2.6 km) long and 1.1 miles (1.8 km) wide. It rises to 65 meters above Lake Michigan, making it the highest in elevation out of all the Potawatomi Islands. It is almost entirely owned by the Wisconsin Department of Natural Resources, which maintains Rock Island State Park. It is the northernmost part of the town of Washington.
From Wikipedia, CC BY-SA 4.0
Chart
Nearest islands
- Washington Island7.4 km
- St. Martin Island9.6 km
- Detroit Island13 km
- Plum Island16 km
- Poverty Island17 km
- Summer Island21 km
Also in Potawatomi Islands

Washington Island
59.4 km²▲ 247 m
Major islands
Summer Island
8.8 km²▲ 232 m
Major islands
St. Martin Island
5.7 km²▲ 223 m
Major islands
Little Summer Island
3 km²▲ 205 m
Minor islands

Detroit Island
2.7 km²▲ 210 m
Minor islands

Plum Island
1.3 km²▲ 197 m
Minor islands

Poverty Island
0.86 km²▲ 212 m
Minor islands
Rocky Island
0.1 km²▲ 179 m
Minor islands
Photographs

Privy for Pottawatomie Light, reported to be oldest surviving structure in Door County, Wisconsin

Pottawatomie Light from SE

Interior of the Thordarson.boathouse, Rock Island State Park, Door County, Wisconsin, June 23, 2019

Rock Island Historic District

View of 1858 and 1986 Pottawatomie Lights at sunset

View of St. Martin Island, MI, from tower of Pottawatomie Light, Rock Island, WI

Water Tower

New Pottawatomie Light tower from 1858 Pottawatomie Light
Sources
Facts
Photographs
- Oldest structure in Door County. Kamital / CC BY-SA 4.0
- Pottawatomie Light SE. Kamital / CC BY-SA 4.0
- Interior of the Thordarson.boathouse, Rock Island State Park, Door County, Wisconsin, June 23, 2019. Sajith T S / CC BY-SA 2.0
- Rock Island Historic District. Namtrahselrahc / CC BY-SA 3.0
- Pottawatomie old and new lights. Kamital / CC BY-SA 4.0
- St. Martin Island from Pottawatomie Light. Kamital / CC BY-SA 4.0
- Rock Island Water Tower. Namtrahselrahc / CC BY-SA 3.0
- 1986 Pottawatomie Light. Kamital / CC BY-SA 4.0