Francis Gwillim Simcoe
| Castle Frank Brook | |
| River | |
| Name origin: Named after the summer residence of John Graves Simcoe, that had been named for his son Francis | |
| Country | Canada |
|---|---|
| Province | Ontario |
| Region | Greater Toronto Area |
| Municipality | Toronto |
| Tributaries | |
| - left | Mashquoteh Creek, Forest Hill Stream, Cedarvale Stream |
| - right | Lamb's Creek, Parson Stream |
| Source | Fairbank Reach |
| - elevation | 177 m (581 ft) |
| - coordinates | 43°42′58″N 79°27′16″W / 43.71611°N 79.45444°W |
| Mouth | Don River |
| - elevation | 76 m (249 ft) |
| - coordinates | 43°40′11″N 79°21′31″W / 43.66972°N 79.35861°WCoordinates: 43°40′11″N 79°21′31″W / 43.66972°N 79.35861°W |
| Length | 12 km (7 mi) |
  Location of the mouth of Castle Frank Brook in Ontario.
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Castle Frank Brook is a buried creek and south-west flowing tributary of the Don River in central and north-western Toronto, Ontario, originating near the intersection of Lawrence Avenue and Dufferin Street.
Residential and industrial development in the former suburban cities of York and North York have obliterated nearly all traces of its original course and topography in the uppermost reaches, but the original stream valley is evident in several older districts bordering the lower reaches. Sections of the lower valley include Cedarvale Park ravine, the Nordheimer Ravine near the intersection of St. Clair Avenue and Spadina Road, and the Rosedale Ravine just above the brook's confluence with the Don. Water still runs in short segments in Cedarvale Park and the Nordheimer Ravine but this is only a collection of surface runoff and ravine slope seepage. The channels are all artificially created and run into a storm sewer that carries the remnants of the brook.
The southern section of Vaughan Road roughly parallels the brook's course, bypassing the steep slopes of the Cedarvale ravine. The brook's topographic influence is still evident at Ramsden Park, to the north of the intersection of Avenue Road and Davenport Road, representing the boundary of the densely developed Yorkville district. The Toronto Transit Commission's Spadina subway line follows the path of the creek from Eglinton West station to St. Clair West station, finally deviating southward at Spadina Road.
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Wikipedia