It was located in the province of Ontario.
The federal riding was created in 1966 from parts of Halton, Hamilton South and Wentworth ridings.
It initially consisted of:
(a) the eastern part of the City of Hamilton (east of a line drawn from north to south along Parkdale Avenue, west along the Canadian National Railway line, south along Strathearne Avenue, west along Roxborough Avenue, south along Kenilworth Avenue, the brow of the Mountain and Mountain Brow Boulevard, east along Mud Street to the east limit of the City of Hamilton);
(b) the Townships of Ancaster, Binbrook and Saltfleet and the southern part of the Township of Glanford (south of County Suburban Road No. 22)
In 1976, it was redefined to consist of the Townships of Flamborough and Glanbrook, the Towns of Ancaster and Dundas, and the southern part of the City of Hamilton (lying south of a line drawn from west to east along Limeridge Road, south along Mountain Brow Boulevard, north along Red Hill Creek, east along the brow of the Mountain to the east city limit.
In 1987, it was redefined to consist of the towns of Ancaster, Dundas and Flamborough, the township of Glanbrook, and the southern part of the City of Hamilton (lying south of a line drawn from east to west along the brow of the Niagara Escarpment, south along Redhill Creek, north along Mountain Brow Boulevard, west along Limeridge Road to St. Jerome School, west to Garth Street, south along Garth Street, and west along the proposed Mountain Freeway to the west city limit.)
The federal electoral district was abolished in 1996 when it was redistributed between Hamilton Mountain, Hamilton West, Stoney Creek and Wentworth—Burlington ridings.
This riding elected the following members of the Canadian House of Commons:
This riding elected the following members of the Legislative Assembly of Ontario:
|- |GIBSON, Colin David |align="right"| 14,979 |- |VICHERT, Gordon Stewart |align="right"| 12,852 |- |RIDGE, Jim |align="right"| 10,059 |}
|- |O'SULLIVAN, Sean |align="right"| 18,611 |- |GIBSON, Colin David |align="right"| 14,755 |- |MACKENZIE, Bob |align="right"|14,520 |- |MCCANN, Ron |align="right"|294 |- |HAMELIN, A.J. Sid |align="right"| 143 |}
|- |O'SULLIVAN, Sean |align="right"|18,874 |- |CURRY, Norm |align="right"| 17,869 |- |MACKENZIE, Bob |align="right"| 11,029 |}
On the resignation of Mr. O'Sullivan, 14 September 1977: |- |SCOTT, Geoff |align="right"| 20,263 |- |LEE, Ken |align="right"| 14,105 |- |BENNETT, James A. |align="right"| 8,282 |- |JAGGARD, Bob |align="right"| 301 |}
|- |SCOTT, Geoff |align="right"| 22,369 |- |BENNETT, Jim |align="right"| 11,343 |- |HITCHCOCK, David |align="right"| 8,550 |- |BOYLAN, Ann |align="right"| 69 |}
|- |SCOTT, Geoff |align="right"| 18,918 |- |CHARLTON, Bill |align="right"| 13,704 |- |HITCHCOCK, David |align="right"| 9,392 |- |PATTISON, Frances |align="right"| 46 |}
|- |SCOTT, Geoff |align="right"| 25,595 |- |CUNNINGHAM, Eric Gordon |align="right"| 14,193 |- |HITCHCOCK, David |align="right"| 8,836 |- |SANTOR, Bill |align="right"| 333 |- |HUGHES, Edward B. |align="right"| 172 |- |GARDNER, Ed |align="right"| 88 |}
|- |SCOTT, Geoff |align="right"| 23,876 |- |GIBSON, Colin |align="right"| 19,373 |- |MCCREA, Julia |align="right"| 8,989 |- |PENNINGS, Ray |align="right"| 4,113 |- |ZULINIAK, David Cheeko |align="right"| 662 |}
|- |BRYDEN, John |align="right"| 29,701 |- |MULLINS, Mark |align="right"| 16,549 |- |JOHNSON, Ray |align="right"| 14,520 |- |MCCALL, Rick |align="right"| 2,555 |- |ELLIS, Ralph |align="right"| 672 |- |VAN DEN ENDEN, Rien |align="right"| 456 |- |SINCLAIR, Norm |align="right"|353 |}