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Ontario County High Points

RankCountyPeak Elev-Ft Range (Level 4)Ascent Date
1.Sudbury DistrictIshpatina Ridge2274Northern Ontario 
2.Thunder BayTower Mountain2228Northern Ontario 
3.TimiskamingIshpatina Ridge North2221Northern Ontario 
4.AlgomaOgidaki Mountain2182Northern Ontario 
5.NipissingSouthern Ontario High Point1896Southern Ontario 
6.HaliburtonManitou Mountain1847Southern Ontario 
7.KenoraKenora District High Point1834Northern Ontario 
8.GreyGrey County High Point1785Southern Ontario 
8.SimcoeNiagara Escarpment High Point1785Southern Ontario 
8.Rainy RiverRainy River District High Point1785Northern Ontario 
11.DufferinDufferin County High Point1778Southern Ontario 
11.HastingsHastings County High Point1778Southern Ontario 
11.MuskokaMuskoka High Point1778Southern Ontario 
14.Parry SoundParry Sound High Point1745Southern Ontario 
15.RenfrewRyans Mountain1716Southern Ontario 
16.WellingtonLuther Benchmark1677Southern Ontario 
17.Sudbury CityWolf Lake Mountain1654Northern Ontario 
18.Lennox and AddingtonMoger Pond Peak1644Southern Ontario 
19.PeelPeel High Point1621Southern Ontario 
20.CochraneGhost Range Peak1601Northern Ontario 
21.WaterlooWaterloo High Point1437Southern Ontario 
22.PeterboroughPeterborough County High Point1424Southern Ontario 
23.PerthPerth County High Point1401Southern Ontario 
24.FrontenacEvergreen Mountain1368Southern Ontario 
25.HaltonHalton High Point1358Southern Ontario 
26.DurhamDurham High Point1345Southern Ontario 
27.BruceBruce County High Point1322Southern Ontario 
28.HuronHuron County High Point1302Southern Ontario 
28.Kawartha LakesKawartha Lakes High Point1302Southern Ontario 
30.OxfordOxford County High Point1283Southern Ontario 
31.LanarkWhite Mountain1266Southern Ontario 
32.YorkYork High Point1243Southern Ontario 
33.NorthumberlandNorthumberland County High Point1168Southern Ontario 
34.ManitoulinCup and Saucer1155Southern Ontario 
35.MiddlesexMiddlesex County High Point1122Southern Ontario 
36.BrantBrant County High Point1073Southern Ontario 
37.HamiltonHamilton High Point1063Southern Ontario 
38.ElginElgin County High Point971Southern Ontario 
39.NorfolkNorfolk County High Point912Southern Ontario 
40.BrantfordBrantford High Point876Southern Ontario 
41.LambtonLambton County High Point866Southern Ontario 
42.NiagaraNiagara High Point850Southern Ontario 
43.Chatham-KentChatham-Kent High Point764Southern Ontario 
43.EssexEssex County High Point764Southern Ontario 
45.HaldimandHaldimand County High Point758Southern Ontario 
46.Leeds and GrenvilleLeeds and Grenville High Point696Southern Ontario 
46.TorontoToronto High Point696Southern Ontario 
48.OttawaOttawa High Point545Southern Ontario 
49.Prince EdwardEast Picton Bay Hill509Southern Ontario 
50.Stormont, Dundas and GlengarryStormont-Dundas-Glengarry High Point410Southern Ontario 
51.Prescott and RussellVankleek Hill404Southern Ontario 

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List Description

Ontario is administratively divided into 51 units that are a mixture of counties, unified counties, regional municipalities, districts, cities, and municipalities. Most of them were historically counties at one point, and despite changes in name or status, the boundaries have remained mostly stable over the years.

These units also correspond to the Canadian Census Divisions for the most part. Since the last revision of Census Divisions in 2001, the combined county of Haldimand-Norfolk split into Haldimand County and Norfolk County, and the City of Brantford separated from Brant County. That is why there are 51 entiries on this list, while the Census lists only 49 Divisions.

Sources

The main source for the Ontario county high point list was the excellent Ontario Basic Mapping database system created by the provincial government, which is a huge improvement over the old NTS 1:50,000 map sheets. To help generate this list, all the spot elevations (over 500,000 of them) in the OBM data were downloaded, matched to their county by a point-in-polygon operation, and the highest spot elevations picked out. Sometimes there was a swarm of spot elevations of the same height in the same general location, and one represenative point was picked. In other cases, separate areas were logged (see, for example, Chatham-Kent). Also, some OBM spot elevations were clearly erroneous outliers and had to be discarded. In general, though, a 1-meter difference in spot elevations was considered significant, and these lower points were not considered high-point candidates.

Once a set of county high points was generated, they were cross-checked with the 1:50,000 NTS maps, and some were adjusted a little bit based on information there. The result should be a reasonably accurate guide to the highest ground in the counties. Before tackling any county, though, be sure to check the OBM and NTS maps yourself to familiarlize yourself with the area. You may have to check out several nearby areas to be sure of locating the highest piece of earth, an occupational hazard of highpointers in relatively flat terrain like Ontario.

Links

     Ontario Basic Mapping

 


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