Sibley, SylvesterA survey map of Leighton Township in Allegan County, Michigan, measured between December 1830 and January 1831.JPEG2000a44bbbca-9ada-4af8-9464-dac2642e39a4MI-T004N-R011WengDepartment of Natural Resources8888-003Public04N 11W - Survey Map of Leighton Township, Allegan County [Michigan]MapsMichigan--AlleganT004N-R011W1830