| NAm-CraterLakeNE.Briffa.2002 | tree | 43° 0' 0", -122° 12' 0" |
| NAm-CottonwoodPass.Briffa.1996 | tree | 38° 42' 0", -107° 36' 0" |
| NAm-CornwallHills.Wilson.2005 | tree | 50° 42' 0", -121° 30' 0" |
| NAm-CoppermineRiver.Jacoby.1989 | tree | 67° 12' 0", -115° 54' 0" |
| NAm-ConroyLake.Gajewski.1988 | lake sediment | 46° 18' 0", -67° 54' 0" |
| NAm-ClearPond.Gajewski.1988 | lake sediment | 33° 48' 0", -79° 0' 0" |
| NAm-CirquePeak.Graybill.1995 | tree | 36° 18' 0", -118° 12' 0" |
| NAm-CienegadeNuestraSenoradeGuadalupe.Fule.2009 | tree | 25° 6' 0", -106° 18' 0" |
| NAm-CeaderBreaks.Briffa.1996 | tree | 37° 36' 0", -113° 54' 0" |
| NAm-CarltonRidge.Kipfmuller.2008 | tree | 46° 42' 0", -114° 12' 0" |
| NAm-CardinalDivide.Luckman.2001 | tree | 52° 54' 0", -117° 18' 0" |
| NAm-CanyonCreek.Lloyd.2002 | tree | 63° 18' 0", -147° 48' 0" |
| NAm-CameronPass.Bigler.2007 | tree | 40° 36' 0", -105° 48' 0" |
| NAm-BurntOver.D'Arrigo.2005 | tree | 65° 12' 0", -162° 18' 0" |
| NAm-BowSummit-PeytoLake.Luckman.2005 | tree | 51° 42' 0", -116° 30' 0" |
| NAm-BorealPlateau.Graumlich.2005 | tree | 36° 18' 0", -118° 18' 0" |
| NAm-Bonif.Schweingruber.1996 | tree | 55° 18' 0", -77° 48' 0" |
| NAm-BlanchardRiver.Luckman.2013 | tree | 59° 54' 0", -136° 48' 0" |
| NAm-BigWhite2.Wilson.2005 | tree | 49° 42' 0", -118° 54' 0" |
| NAm-BigWhite.Parish.2000 | tree | 49° 54' 0", -118° 54' 0" |
