ON N M-30, Gladwin, MI 48624, Gladwin, MI, 48624 is has 0 sqft. of livable floor space. This listing for sale has 0 bedrooms, and 0 baths. ON N M-30, Gladwin, MI 48624 is a 487,872 size lot located in Gladwin is active on the market for $55,000. This listing for sale is located in Gladwin in the zipcode 48624.