Apostle Islands National Lakeshore

Sandstone shore, blue lake, and distant beach
Julian Bay, Stockton Island


The Apostle Islands National Lakeshore in southwestern Lake Superior is composed of 21 of the archipelago's 22 islands. This park is included in all of our programs except for annual water quality monitoring because there are no inland lakes on any of the islands. Special projects (including some water quality monitoring) do occur in the Lake Superior part of the park, though, and the islands are revealing themselves to be a gathering place for microplastics.

Dive into the resource briefs and reports below to find out more about what we are learning.


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    Last updated: December 27, 2022