maple_ridge_township,_alpena_county,_michigan | ispartof | united_states <tsp> alpena_county_regional_airport | location | maple_ridge_township,_alpena_county,_michigan <sep> maple ridge township is a civil township of alpena county in the us state of michigan the population was 1,690 at the 2010 census 
maple ridge township. alpena county. michigan is in the united states. the alpena county regional airport is located there.maple ridge township alpena county michigan is a civil township