Petersburg Wildlife Viewing
Trumpeter Swan Observatory

photo of Trumpeter Swan Observatory area wildlife The Trumpeter Swan Observatory is located along the waters of Blind Slough. Between mid-October and December, hundreds of trumpeter swans pass through to feed and rest here before resuming their southward migration, and up to 75 swans overwinter here. An enclosed wheelchair-accessible viewing shelter allows wildlife watchers to observe the swans without disrupting them, which is critical during migration and the difficult winter months. Bring binoculars or a spotting scope for optimal viewing. This is also a good summertime birding spot; look for mergansers, mallards, geese, and bald eagles.


The underwater plants in Blind Slough are an important food source for trumpeter swans, which is why they concentrate here during migration.


  • Swans


Swans are easily spotted by their long, graceful necks, but you might also spot swans with their heads submerged as they feed on underwater plants.


  • Hiking Trails
  • Interpretive Signs
  • Wheelchair Accessible


Be sure to stay as quiet and avoid startling or disturbing the swans while at the observatory.

Plan to spend at least: 1 - 4 hours

Best Months

█ Best Month

  • Best Month January
  • Best Month February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • Best Month October
  • Best Month November
  • Best Month December


The Trumpeter Swan Observatory is at mile 16 of the Mitkof Highway.


Petersburg Visitor Information Center - (907) 772-4636 or USDA Forest Service, Petersburg Ranger District - (907) 772-3871 or

Additional Information

USDA Forest Service - Nature Watch