Peter Kelly sampling old Thuja occidentalis on Flowerpot Island. (photo © Peter Kelly)	A gnarly & ancient cliff face Thuja occidentalis on Flowerpot Island. (photo © Peter Kelly)

Species	Age	Type	ID	Location	Collector(s), Dater(s), Reference(s)
Thuja occidentalis	1653	XD	FL117 - dead	Niagara Escarpment, Ontario, Canada	Kelly and Larson 1991
Thuja occidentalis	1567	XD	FL101 - dead	Niagara Escarpment, Ontario, Canada	Kelly and Larson 1997
Thuja occidentalis	1141	XD	--	Lion's Head North, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	1051	XD	--	Lion's Head South, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	1032	XD		Niagara Escarpment, Ontario, Canada	Larson and Kelly 1991
Thuja occidentalis	1024	XD	--	Lion's Head North, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	1006	XD	--	Lion's Head North, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	1005	XD	--	Lion's Head South, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	985	XD	--	Lion's Head South, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	962	XD	--	Lion's Head South, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	960	XD	--	Lion's Head North, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	942	XD	--	Lion's Head North, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	888	RC	--	Lake Duparquet, Abitibi-Témiscamingue, Quebec	Archambault, 1989; Archambault and Bergeron, 1992.
Thuja occidentalis	868	XD	--	Lion's Head North, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	844	XD	--	Lion's Head North, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	786	XD	--	Mount Nemo, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	733	XD	--	Smokey Head-White Bluff, Niagara Escarpment	P. Kelly
Thuja occidentalis	716	XD	--	Old Baldy, Niagra Escarpment, Ontario	P. Kelly
Thuja occidentalis	706	XD	--	Inglis Falls, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	691	XD	--	Inglis Falls, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	682	XD	--	Flower Pot Island South, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	669	XD	--	Flower Pot Island South, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	650	XD	--	Flower Pot Island, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	639	XD	--	Flower Pot Island, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	602	XD	--	Kelson Cons. Area, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	597	XD	--	Milton Heights, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	580	XD	--	Bayview Escarpment, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	573	XD	--	Rattlesnake Point, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	559	XD	--	Metcalfe Rock, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	538	XD	--	Metcalfe Rock, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	526	XD	--	Lion's Head North, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	510	XD	--	Pinnacle Rock, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	506	XD	--	Devils Glen, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	495	XD	--	Crawford Lake, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	472	XD	--	Noisy River, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	454	XD	--	Pinnacle Rock, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	444	XD	--	Buffalo Crag, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	435	XD	--	Webster's Falls, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	433	XD	--	Webster's Falls, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	412	XD	--	Noisy River, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	397	XD	--	Rock Chapel, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	386	XD	--	Mono Cliffs West, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	378	XD	--	Tew's Falls, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	344	XD	--	Sleeping Giant Prov. Park, Ontario, Canada [swamp forest]	Girardin et. al, 2006
Thuja occidentalis	326	RC	--	Lake Abitibi Model Forest, Ontario, Canada	Lefort, P.; Ontario's Old Tree
Thuja occidentalis	247	XD	--	Nottawasaga Lookout, Niagara Escarpment, Ontario	P. Kelly
Thuja occidentalis	231	XD	--	Grimsby-Beamer's Point, Niagara Escarpment, Ontario	P. Kelly

An old Thuja occidentalis (888 yrs old) at Lake Duparquet of the Abitibi-Temiscamingue region in Quebec. Photo taken May 16, 2006. (photo ©2006 Bernhard Denneler)

 

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