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Ontario County High Points

Showing Micah Leibbrand's most recent ascent dates for climbed peaks (0 out of 51, or 0%)

RankCountyPeak Elev-Ft Range (Level 4)AscentsAscent Date
 Sudbury DistrictIshpatina Ridge2274Northern Ontario43 
 Thunder BayTower Mountain2228Northern Ontario6 
 TimiskamingIshpatina Ridge North2221Northern Ontario6 
 AlgomaOgidaki Mountain2182Northern Ontario5 
 NipissingSouthern Ontario High Point1896Southern Ontario8 
 HaliburtonManitou Mountain1847Southern Ontario5 
 KenoraKenora District High Point1834Northern Ontario3 
 Rainy RiverRainy River District High Point1785Northern Ontario2 
 SimcoeNiagara Escarpment High Point1785Southern Ontario12 
 GreyGrey County High Point1785Southern Ontario10 
 MuskokaMuskoka High Point1778Southern Ontario6 
 DufferinDufferin County High Point1778Southern Ontario10 
 HastingsHastings County High Point1778Southern Ontario4 
 Parry SoundParry Sound High Point1745Southern Ontario5 
 RenfrewRyans Mountain1716Southern Ontario10 
 WellingtonLuther Benchmark1677Southern Ontario9 
 Sudbury CityWolf Lake Mountain1654Northern Ontario6 
 Lennox and AddingtonMoger Pond Peak1644Southern Ontario5 
 PeelPeel High Point1621Southern Ontario5 
 CochraneGhost Range Peak1601Northern Ontario6 
 WaterlooWaterloo High Point1437Southern Ontario8 
 PeterboroughPeterborough County High Point1424Southern Ontario5 
 PerthPerth County High Point1401Southern Ontario8 
 FrontenacEvergreen Mountain1368Southern Ontario7 
 HaltonHalton High Point1358Southern Ontario14 
 DurhamDurham High Point1345Southern Ontario8 
 BruceBruce County High Point1322Southern Ontario6 
 Kawartha LakesKawartha Lakes High Point1302Southern Ontario8 
 HuronHuron County High Point1302Southern Ontario5 
 OxfordOxford County High Point1283Southern Ontario12 
 LanarkWhite Mountain1266Southern Ontario7 
 YorkYork High Point1243Southern Ontario12 
 NorthumberlandNorthumberland County High Point1168Southern Ontario6 
 ManitoulinCup and Saucer1155Southern Ontario18 
 MiddlesexMiddlesex County High Point1122Southern Ontario10 
 HamiltonHamilton High Point1083Southern Ontario5 
 BrantBrant County High Point1073Southern Ontario4 
 ElginElgin County High Point971Southern Ontario5 
 NorfolkNorfolk County High Point912Southern Ontario4 
 BrantfordBrantford High Point876Southern Ontario9 
 LambtonLambton County High Point866Southern Ontario8 
 NiagaraNiagara High Point850Southern Ontario16 
 Chatham-KentChatham-Kent High Point764Southern Ontario6 
 HaldimandHaldimand County High Point758Southern Ontario4 
 EssexEssex County High Point748Southern Ontario4 
 Leeds and GrenvilleLeeds and Grenville High Point696Southern Ontario6 
 TorontoToronto High Point696Southern Ontario25 
 OttawaOttawa High Point545Southern Ontario9 
 Prince EdwardEast Picton Bay Hill509Southern Ontario12 
 Stormont, Dundas and GlengarryStormont-Dundas-Glengarry High Point410Southern Ontario8 
 Prescott and RussellVankleek Hill404Southern Ontario15 

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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.


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.


     Ontario Basic Mapping


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