Columbia subject headings:
Forest management--Alaska--Tongass National Forest.
Logging--Environmental aspects--Alaska--Tongass National Forest.
Logging--Environmental aspects--Alaska--Wrangell-Petersburg Census Area--Wrangell Island (Wrangell-Petersburg Census Area, Alaska)
Tongass National Forest (Alaska)--Environmental conditions.
Harvard subject headings:
Forest management--Alaska--Tongass National Forest
Logging--Environmental aspects--Alaska--Tongass National Forest
Logging--Environmental aspects--Alaska--Wrangell Island (Wrangell-Petersburg Census Area)
Tongass National Forest (Alaska)--Environmental conditions.
Princeton subject headings: