What is this abandoned airport between Montague and Rothbury, Michigan? It appears to have had two intersecting paved runways, each very roughly 2000 feet long (give or take); the one that runs closer to north-south is still legibly numbered as runway 17/35, but the other runway is in much worse condition (suggesting that it was closed some time before runway 17/35), and its pavement is too broken up for me to make out the numbering.  Runway 17/35 has considerably larger turnaround areas at both ends than the other runway does.  There is a cleared strip extending for approximately 400 feet past the southern end of runway 17/35.

West of the intersection of the two runways, there appears to be a dilapidated apron, with taxiways connecting it to both runways; immediately north of the apron, there is what could be the remnants of a collapsed hangar, or could be something else entirely (there is another area of junk just to the southwest of the apron).

Google Maps link to location of the former airport here.

Google Maps screenshot showing the mystery ex-airport:
The airport is Ottiger Airport (2MI6) which is closed indefinitely. I cannot find any information on when it was closed or for what reason. The last update date that I can find for the charts is August of 2006, which is probably when the airport was closed.

Apparently there is one person who is trying to revive the airport for private use according to this post on Facebook.