THE PETERSBURG BOROUGH LAND BRIEF
Land in the
Coastal Western Hemlock-Sitka Spruce Forests setting.
Petersburg Borough has 2,900.9 square miles of land in Alaska. 2 mapped landscape regions meet across Petersburg Borough: Coastal Western Hemlock-Sitka Spruce Forests, Pacific Coastal Mountains.
Deep bays, steep valley walls and an irregular shoreline reveal intense past glaciation. Wet maritime forests of hemlock and Sitka spruce characterize southeastern and south-central coastal Alaska.
Regional context: Coastal Western Hemlock-Sitka Spruce Forests ↗ · Regional mapping across the county footprint
Where the landscape changes
Petersburg Borough intersects 2 mapped regional units. The largest mapped shares are:
- Coastal Western Hemlock-Sitka Spruce Forests60%
- Pacific Coastal Mountains40%
Pacific Coastal Mountains in Petersburg Borough
Coastal Alaska's steep, wet mountains include large areas of glacial terrain. Rocky slopes and ice-covered highlands contrast with lower shrub-covered settings where vegetation can establish.
Read the regional source ↗Finding your parcel within Petersburg Borough
The atlas lists 3 cities, towns, townships, and Census communities associated with Petersburg Borough, including Hobart Bay, Petersburg, Kupreanof. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Petersburg Borough by land and water
The Census records 926.6 square miles of water within Petersburg Borough, or 24.2% of its total area. That share is close to Petersburg Borough’s 24.2%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Petersburg Borough has 960.6 times the land area of nearby Kupreanof city (3.02 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Hoonah-Angoon Census Area, Prince of Wales-Hyder Census Area, Wrangell City and Borough within Alaska. A tract near one of these lines should be matched to the county identifier on its own records.