Devil Mountain

{{Short description|Mountain in Ontario, Canada}}

{{Infobox mountain

| name = Devil Mountain

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| elevation_m = 375

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| location = Temagami, Ontario

| range =

| map = Canada Ontario

| map_caption = Ontario, Canada

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| label_position = below

| coordinates = {{coord|47|5|18|N|80|5|6|W|type:mountain_region:CA-ON_scale:100000|format=dms|display=inline,title}}

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| topo = NTS {{Canada NTS Map Sheet|41|P|1}}

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}}

Devil Mountain, sometimes mistakenly called Devil's Mountain, is a wooded mountain in the Municipality of Temagami, Northeastern Ontario, Canada. It overlies Devil Island in Lake Temagami with an elevation of {{nowrap|{{Convert|375|m|ft|abbr=on}}}} above sea level. A short trail from Angus Point leads to an overlook some {{nowrap|{{Convert|76|m|ft|abbr=on}}}} above Lake Temagami. From here, Maple Mountain can be seen on a clear day.{{cite web|url=http://www.ottertooth.com/Temagami/Maps/map_tem_atlas_devils.htm#Devils|title=Devil's Mountain Lookout|accessdate=2016-11-02}}

Devil Mountain is underlain by Nipissing diabase, which forms a 2.2 billion year old magmatic province with an east–west extent of almost {{nowrap|{{Convert|450|km|mi|abbr=on}}}} and a north–south extent of up to {{nowrap|{{Convert|350|km|mi|abbr=on}}}}.{{cite report|title=Geology of Northwestern Timagami Area, District of Nipissing|publisher=Queen's Printer|last1=Simony|first1=P. S.|year=1964 |number=28 |url=https://www.geologyontario.mndm.gov.on.ca/mndmfiles/pub/data/imaging/R028/r028.pdf |access-date=September 10, 2024}}{{cite journal | last1 = Lightfoot | first1 = P. C. | last2 = Souza | first2 = H. De |last3 = Douerty |first3 = W. | title = Differentiation and source of the Nipissing Diabase intrusions, Ontario, Canada | journal = Canadian Journal of Earth Sciences | volume = 30 | page = 1124 | publisher = NRC Research Press | year = 1993 | issue = 6 | issn = 1480-3313 | doi = 10.1139/e93-095 | bibcode = 1993CaJES..30.1123L }}