This map is here for your convenience

The Channel Islands

The story The Island of the Blue Dolphins takes place on San Nicolas Island which is part of the Channel Islands. The Channel Islands can be found off the coast of California. This map shows us the the eight islands that make up the Channel Islands:


Below you will find a larger image of San Nicolas Island:

View Larger Map

Aleutian Islands

The Aleutian Islands (possibly from Chukchi aliat, "island") are a chain of more than 300 small volcanic islands forming part of the Aleutian Arc in the Northern Pacific Ocean. The Aleuts are descended from an Eskimo people.
The Russians began expanding into this area in the late 1700's. They used the Aleuts as slaves, especially for sea otter hunting. The Russians captured otter pelts from the Aleutian Islands, through the Gulf of Alaska, along the Alaska Panhandle, and south, even to California.

More information can be found here.