 From its inception in the 1920s , M @-@ 209 was Michigan 's shortest highway . It connected the small community of Glen Haven to M @-@ 109 just south of the community . Glen Haven was founded as a settlement called Sleeping <unk> with a sawmill and an inn in 1857 . By 1881 , there were 11 buildings in the community . The lifesaving station was built in 1901 and moved to its present location in 1931 before closing in 1941 . M @-@ 209 was first assumed as a state trunkline in the 1920s . It would later serve the national lakeshore when the park was created on October 21 , 1970 . The Park Service purchased all of the village by the mid @-@ 1970s . The highway was turned over to Leelanau County control on June 5 , 1996 . It is now known only as Glen Haven Road . Since the transfer , M @-@ 212 in Cheboygan County is now the shortest highway in the state . 
