Fort Knox Historic Site and the Penobscot Narrows Observatory is now

We will reopen on May 1st of 2022.

Come join us next year
for the best views in Maine! 

Fort Knox Historic Site and the Penobscot Narrows Bridge & Observatory are closed from Nov 1st through April 30th.  The grounds are open daily during the offseason from 9am to sunset
Dogs are welcome if on a 4'-6' leash, cleaned up after and not a nuisance to other guests.  Please do not leave pets unattended in your vehicle. 

Call 207-469-6553 or email for information! 

The Friends of Fort Knox would like to thank everyone for their support as visitors, event attendees and donors helping us to operate, maintain and preserve the Fort Knox Historic Site for future generations!

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.  We try to offer free interpretive guided tours provided by volunteers when available between 11am to 3pm.  Reservations for special events (weddings, family gatherings, reunions, business retreats) and group tours may be arranged by calling 207-469-6553 or
During the off season (November 1st to April 30th) Grounds are open from 9am to 4pm - weather dependent.
  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!