Elevation has been shown to be a powerful predictor of the distribution of forest communities in the Northeast U.S and Eastern Canada. Temperature, precipitation, and exposure commonly vary with changing altitude. The Northern Appalachian/Acadian Ecoregion can be divided into 5 ecologically relevant elevation zones based on tree communities.
Elevzone Meter (feet) Characteristic forest type
10000 234 (0-800) Oak, pine-oak, pine-hemlock, maritime spruce, floodplain forest
2000 234 - 533 (800-1700) Hemlock-northern hardwoods, N. hardwoods, lowland spruce-fir
3000 533 - 762 (1700-2500) Northern hardwoods, spruce-hardwoods
4000 762 - 1158 (2500-4000) Spruce-fir, spruce-hardwoods
5000 > 1158 (>4000) Krummholz, montane spruce-fir, alpine communities