In 1940, this island became part of an eponymously named (*) national park, and National Park ferries connect this island to Grand Portage, Minnesota, as well as Houghton and Copper Harbor.
The highest point on this island is Mount Desor, which rises 240 meters above the surrounding waters. The Treaty of La Pointe in 1842 caused this island to be in two countries simultaneously, until an eponymously named treaty in 1844 settled the dispute. In 1897, its eponymously named country was dissolved, and the island was incorporated into Keweenaw County, about 55 miles to its southeast. In 1940, this island became part of an eponymously named (*) national park, and National Park ferries connect this island to Grand Portage, Minnesota, as well as Houghton and Copper Harbor. This island was the site of a study examining cyclic fluctuations in the ► populations of wolves and moose. For 10 points, name this Michigan island in Lake Superior.
The highest point on this island is Mount Desor, which rises 240 meters above the surrounding waters.
{Isle Royale} (prompt on partial answer)