Township of Algonquin
- Alg-1, Crystal Lake Academy/Gates House, 210 McHenry Avenue, Crystal Lake
- Alg-2, James T. Pierson House, ~486 W. Virginia Street, Crystal Lake
- Alg-3, Charles C. Pingry House, near SE corner of E. Crystal Lake Ave. and Scott Lane, Crystal Lake
Town of Algonquin and McHenry County Maps