City of Montague issued the following announcement on Aug 23.
The General Election will be held on Tuesday, November 2, 2021 to elect the Mayor and three council positions. To obtain a mail-in ballot, either pick up an application at the City Clerk's office in City Hall, or complete an online application at www.Michigan.gov/VOTE
This is especially convenient for our military and overseas residents.
Original source can be found here.