Michigan flying is shaped by big-airport infrastructure and a deep network of smaller public-use fields. The state lists 221 public-use airports, but only 17 are towered. That leaves 204 non-towered airports for local hops, rural access and practice away from busier terminal areas. KDTW (DETROIT METRO WAYNE COUNTY) is the heavyweight in the directory data. It has the state’s longest runway at 12,003 feet and the most runways at one field with seven. KYIP (WILLOW RUN) and KPTK (OAKLAND COUNTY INTL) add more towered options in the Detroit area. KPTK also stands out with six FBOs. Outside southeast Michigan, the runway picture remains strong. KGRR (GERALD R FORD INTL) has a 10,001-foot runway on the west side of the state. KBTL (BATTLE CREEK EXEC AT KELLOGG FLD) has 10,004 feet and two FBOs. Farther north, KTVC (CHERRY CAPITAL), KSAW (MARQUETTE/SAWYER RGNL) and KAPN (ALPENA COUNTY RGNL) give pilots towered fields with ILS capability for Great Lakes weather planning.