New York State Historic Site · Oswego County
A star-shaped fort dating to the early 1840s, improved through the 1860s and 70s, with guardhouses, a powder magazine and enlisted men's barracks. Windswept ramparts look over Lake Ontario above stone casemates you can tour.
Admission: $4 Adults $3 Seniors/Students $2 per person, group - adults $1 per person, group - students Children 12 and under Free
Fort Ontario will reopen for the season on Wednesday, May 14, 2025.
May 13, 2026 - October 12, 2026
Wednesday- Saturday 10:00 am – 4:30 pm
Sundays 12:00 pm – 4:30 pm
Closed Monday & Tuesday
Open Monday Holidays
Hours as published by NY State Parks. Check the official page before a long drive.
Phone315-343-4711
Address1 East Fourth Street, Oswego, NY 13126
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