4 links
Grindstone Air Harbor Airport
airnav.com
Aeronautical information includes location, runway, taxiways, navaids, radio frequencies, FBO information, weather, sunrise and sunset times, aerial photo, airport diagram.
Pro's Line Charters
micharterboats.com
Salmon and trout fishing excursions on Lake Huron, departing from the port of Grindstone City with Captain Harold Stroshein.
Salmon Fishing Port Austin Michigan
micharterboats.com
Michigan Charter Boat Association offers links to member sites and contacts.