Discover America's Original Fort Knox - Prospect, Maine
Fort Knox and the Penobscot Narrows Observatory
is open for the 2024 Season!
Fort Knox Historic Site and the Penobscot Narrows Bridge Observatory are open:
- 9am to 5pm in May/June/September/October
- 9am to 6pm in July and August
The Fort itself remains open an hour later than the observatory
Grounds are open until sunset, weather-depending.
Pets are welcome everywhere (except in the Observatory) if on a 4'-6' leash, cleaned up after, and not a nuisance to other guests. Pets are not allowed to be unattended in your vehicle.
The Fort Knox Historic Site features one of the best-preserved examples of coastal defense fortifications constructed in the mid-1800s. It is America's first fort named after Major General Henry Knox. Volunteer docents (experts) provide free interpretive tours (when available) from May 1st through October 31st, between 11 am to 3 pm. The PNO is the tallest bridge observatory open to the public in the world. Visitors to the observatory ride Maine's fastest elevator up 420' feet for breathtaking 360-degree views of the Penobscot Bay area.
Please enjoy the slideshow below for a taste of what Fort Knox and the PNO have to offer!
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