Spider Island is a real, uninhabited island in Lake Michigan. It sits in Door County, Wisconsin, near Ellison Bay.
If you have been wondering where Spider Island is located, you should look off the east side of the Door County peninsula in the United States.
Spider Island is a protected Wisconsin island in Lake Michigan, and it is best known as part of a small wildlife refuge rather than as a tourist stop.
Its remote setting, official mapping, and refuge status make it easy to miss unless you know exactly where to look on a Door County map.
Exact Location In Door County
Spider Island connects to Door County, Ellison Bay, and the town of Liberty Grove. Official records place it in Lake Michigan, not on land.
The island is small enough that you usually need a close map view to spot it.
Position In Lake Michigan
Spider Island sits offshore in Lake Michigan on the east side of the Door County peninsula. The island does not connect to the mainland, so you will not reach it by road or trail.
Geographic records list its coordinates, and its spot in the water places it near the shoreline around Ellison Bay.
That makes it part of the Door County island chain area often shown on detailed lake maps.
Liberty Grove And Ellison Bay Context
The United States Geographic Naming Information System places Spider Island in Ellison Bay, within the town of Liberty Grove, Wisconsin. The Door County DOT map also identifies it as a county feature offshore from the peninsula.
If you look at northern Door County and Ellison Bay, Spider Island appears just out in the lake rather than near the shoreline.
How Official Sources Identify The Island
Official and reference maps list Spider Island as a named island feature in Door County, Wisconsin. Mapping and geographic databases recognize the island as uninhabited and as a distinct place in Lake Michigan.
You are looking for a mapped island feature that sits offshore and is identified by name in formal records.
How Spider Island Fits Into The Refuge
Spider Island and nearby Gravel Island form a small protected area. The refuge status keeps the island quiet, natural, and mostly off limits.
Relationship To Gravel Island
Spider Island and Gravel Island make up the refuge. Spider Island is the larger of the pair, and both sit in Lake Michigan off Door County.
Spider Island is usually discussed as part of a small island group with a shared conservation role.
Part Of Gravel Island National Wildlife Refuge
Spider Island is part of the Gravel Island National Wildlife Refuge, along with nearby Gravel Island. The refuge is a national wildlife refuge managed for habitat protection, especially for bird life.
The islands are not treated like recreational parkland. Their main value is ecological.
Why The Protected Status Matters
The refuge protects nesting habitat and keeps disturbance low. Birds and other wildlife depend on quiet shoreline and island cover.
For you, the protected status explains why Spider Island is rarely seen up close.
What Visitors Should Know Before Looking For It
Spider Island is not a visitor island, and it does not function like a public beach or ferry stop. The key things to know are its uninhabited status, limited access, and the best way to picture it on a map.
Why The Island Is Uninhabited
Spider Island is an uninhabited island in Lake Michigan. You will not find homes, shops, docks for public use, or village services on the island.
You are looking at a natural offshore island, not a developed place where people live year-round.
Public Access And Offshore Restrictions
Public visitation is limited because the island is part of a wildlife refuge. The protected setting reduces disturbance and supports wildlife, especially birds that nest there.
If you hope to visit, plan on viewing it from a distance instead of walking on it. The island’s status makes it more of a map location and conservation site than a travel stop.
Best Way To Understand Its Location On A Map
Focus on Door County to find Spider Island. Then zoom toward Ellison Bay and the east side of the peninsula.
On a detailed Door County map, you can see the island offshore in Lake Michigan.
A map view highlights why the island stands out. The island sits close enough to the coast to be named, but far enough out in the water to remain isolated and protected.
