Deer Park is a neighbourhood in Toronto, Ontario, Canada, centred on the intersection of Yonge Street and St. Clair Avenue; its boundaries are the Vale of Avoca section of Rosedale ravine in the east, Farnham Avenue and Jackes Avenue in the south, Avenue Road and Oriole Parkway in the west, the Belt Line trail in the north on the west side of Yonge Street, and Glen Elm Avenue in the north on the east side of Yonge Street.

The name dates from 1837, when the Heath family purchased 40 acres (162,000 m²) of land on the northwest corner of Yonge and St. Clair (then the Third Concession Road) and named it Deer Park. By the 1850s the neighbourhood included a racetrack, a school, and a hotel at which patrons could feed deer which roamed the Heaths' property. The Heath property was subdivided in 1846 and was entirely sold off by 1874.

In 1891 Upper Canada College moved from its urban location to the then still rural Deer Park area, establishing a large campus that remains in the same location today, interrupting Avenue Road north of St. Clair Avenue.

Deer Park was annexed by the City of Toronto in 1908, and by the 1930s it had become an upper-middle class residential district, which it remains today. The intersection of Yonge and St. Clair is also the site of extensive nodal commercial development.

Deer Park is also home to one of Toronto's oldest cemeteries. St. Michael's Cemetery was opened by the Roman Catholic Archdiocese of Toronto on September 28, 1855. There are some 29,000 graves in the cemetery. Ten acres in size, St. Michael's has the unusual characteristic of being surrounded on all sides by the backs of buildings, thus making it nearly invisible from the street. It is bound on the north by stores, office buildings and a church along St. Clair Avenue West, on the west by houses along Foxbar Road, on the south by houses and a firehall along Balmoral Avenue, and on the east by stores and office buildings along Yonge Street. Entrance to the cemetery is gained through an alley off Yonge Street. The cemetery's octagonal mortuary vault was used to store bodies in the winter until the ground thawed. Designed by architect Joseph Sheard, who was also mayor of Toronto in 1871-72, the vault was designated a historic property under the Ontario Heritage Act in December 1975.

Source: Wikipedia