Michigan - Significance region: Local
| Lake Leelanau Narrows Bridge |
| Lake Linden Historic District |
| Lake Linden Village Hall and Fire Station |
| Lake Orion Historic District |
| Lake Shore Chapel |
| Lakeside Inn |
| Lakewood Farm |
| Lancaster and Waumbek Apartments |
| Lanphere-Pratt House |
| Lansing Artillery Michigan National Guard Armory |
| Lansing Downtown Historic District |
| Lansing Shoals Light Station |
| Lansing Woman's Club Building |
| Lasanen Site |
| Lathrup Village Historic District |
| Lawrence and Chapin Building |
| Lawyers Building |
| League of Catholic Women Building |
| Learned, Charles G., House |
| Ledyard Block Historic District |
| Lee, John and Rosetta, House |
| Leelanau Transit Company Suttons Bay Depot |
| Lee Paper Company Mill Complex |
| Lee Plaza Hotel |
| Leiendecker's Inn-Coral Gables |
| Leland, Nellie, School |
| Lenawee County Courthouse |
| Lesher, Frank, House |
| Leuty, Isaac, House |
| Levine, Louis, House |
| Lewis, F. W., House |
| Lewis, John C. and Augusta (Covell), House |
| Lexington School |
| Lieblein House |
| Lilienfeld, David, House |
| Lilley Road-Lower Rouge River |
| Lilly, Augustus, House |
| Lincoln Park Post Office |
| Lincoln Road-Pine River Bridge |
| Lincoln School |
| Lincoln School |
| Linden Mill |
| Lipsett Hardware Building |
| Litchfield, James, House |
| Lobb House |
| Lockwood, Isaac, House |
| Loeb Farms Barn Complex |
| Longyear Building |
| Loomer, George W., House |
| Loop, Joseph M., House |
| Loraine Building |
| Loranger, Edward, House |
| Louk, George, Farm |
| Lovell-Webber House |
| Luce County Sheriff's House and Jail |
| Ludington North Breakwater Light |
| Ludington United States Coast Guard Station |
| Lutz, George R., House |
| M 26-Cedar Creek Culvert |
| M26-Silver River Culvert |
| M-27-Au Sable River Bridge |
| M-28-Sand River Bridge |
| M-28-Tahquamenon River Bridge |
| M-50-Sandstone Creek Bridge |
| M-86-Prarie River Bridge |
| M-88-Intermediate River Bridge |
| M-94 (old)-Au Train River Bridge |
| M 95 (old)-Michigamme River Bridge |
| Mackinac Point Lighthouse |
| Mackinac Trail-Carp River Bridge |
| MacKinnon, Alexander, House |
| MacKinnon, Donald C., House |
| MacLachlan, Dr. Charles H., Sanitarium and House |
| MacNichol, George P., House |
| Main Street-Black River Bridge |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Post Office |
| Majestic Theater |
| Malin, A., House |
| Manchester Apartments |
| Manistee Central Business District |
| Manistee Harbor, South Breakwater |
| Manistee Iron Works Machine Shop |
| Manistique East Breakwater Light |
| Manistique Pumping Station |
| Manitou Lodge |
| Mansfield Mine Location Historic District |
| Mansfield Road-Michigamme River Bridge |
| Maple Grove Cemetery |
| Maple Street Historic District |
| Marantette Bridge |
| Marantette House |
| Marian Hall |
| Marine City City Hall |
| Marine City Water Works |
| Markle, George and Eugene, House |
| Marlborough, The |
| Marquette and Western Railroad Negaunee Freight Depot |
| Marquette City Hall |
Data from United States Park Service and Wikidata
