Old Growth Forests and Champion Trees
- Boreal Forest
- Western Temperate Rainforest
- Great Bear Rainforest
- Temperate Broadleaf Forest
- Mixed Evergreen Forests
- New England Acadian Forest
- Eastern Hemlock Forest
- Coastal Redwood Forest
- Northern Pacific Coastal Forest
- Sierra Nevada Giant Sequoia Forest
- Southeastern Conifer Forest
- South Florida Cypress Forest
- Appalachian Blue Ridge Forest
- Olympic National Forest
- Coast Douglas Fir and Sitka Spruce Forest
- Bahamian Dry Forest
- Wyoming Lodgepole Pine Forest
