Burt Township is a civil township of Alger County in the U.S. state of Michigan.

[3] The township contains the community of Grand Marais, which contains numerous historic structures, including the Pickle Barrel House and the Grand Marais Harbor of Refuge Inner and Outer Lights.

The township is also the eastern gateway to the Pictured Rocks National Lakeshore and includes the Au Sable Light on the shores of Lake Superior.

According to the United States Census Bureau, the township has a total area of 258.03 square miles (668.29 km2), of which 230.48 square miles (596.94 km2) is land and 27.55 square miles (71.35 km2) (10.68%) is water.

[4] As of 2020, its population was 411 and it had a median household income of $41,778.