Boldt Castle is a Châteauesque castle in Alexandria Bay, New York, and a filming location for Fear No Evil (1981). Built in 1900, it was designed by G. W. & W. D. Hewitt, and is listed on the U.S. National Register of Historic Places. It is owned by Thousand Islands Bridge Authority.
Location: Heart Island, Alexandria Bay, New York, United States
Verified facts
- Located in Heart Island, Alexandria Bay, New York
confidence 75/100 · 3 independent sources · SRC-0284, SRC-0285, SRC-0462 - Designed by G. W. & W. D. Hewitt
confidence 80/100 · 7 independent sources · SRC-0285, SRC-0286, SRC-3030, SRC-3863, SRC-5332, SRC-5333, SRC-9007 - Built in 1900
confidence 75/100 · 3 independent sources · SRC-0284, SRC-0285, SRC-0463 - Architectural style: Châteauesque
confidence 80/100 · 4 independent sources · SRC-0284, SRC-0285, SRC-0462, SRC-0464 - Historic designation: National Register of Historic Places (1978, George C. Boldt Yacht House, ref. 78001853)
confidence 75/100 · 3 independent sources · SRC-0287, SRC-0288, SRC-2988 - Appeared in Fear No Evil (movie, 1981) — as filming location
confidence 80/100 · 6 independent sources · SRC-0285, SRC-0289, SRC-5334, SRC-5335, SRC-9008, SRC-9747 - Owned by Thousand Islands Bridge Authority
confidence 90/100 · 4 independent sources · SRC-0284, SRC-0285, SRC-2989, SRC-3863 - Built in 1900
confidence 95/100 · 5 independent sources · SRC-0285, SRC-3863, SRC-7193, SRC-3030, SRC-0284
Evidence & sources
- SRC-0284 — Official Boldt Castle Website (Thousand Islands Bridge Authority) (Tier 1, owner_statement; retrieved June 2026)
- SRC-0285 — Wikipedia: Boldt Castle (Tier 3, encyclopedia; retrieved June 2026)
- SRC-0286 — Wikipedia: G. W. & W. D. Hewitt (Tier 3, encyclopedia; retrieved June 2026)
- SRC-0287 — Wikipedia: George C. Boldt Yacht House (Tier 3, encyclopedia; retrieved June 2026)
- SRC-0288 — Official Boldt Castle Website (Thousand Islands Bridge Authority) (Tier 1, owner_statement; retrieved June 2026)
- SRC-0289 — WWNY-TV (7 News) (Tier 2, journalism; retrieved June 2026)
- SRC-0462 — I LOVE NY (New York State official tourism, Empire State Development) — Boldt Castle listing (Tier 1, official_archive; retrieved June 2026)
- SRC-0463 — WWNY 7 News (Watertown, NY) — Boldt Castle: A story of love & heartbreak (Tier 2, journalism; retrieved June 2026)
- SRC-0464 — Alluring World — Boldt Castle (Tier 3, reference_database; retrieved June 2026)
- SRC-2988 — National Register of Historic Places – NPGallery Asset Detail, Boldt, George C., Yacht House (National Park Service) (Tier 1, official_archive; retrieved June 2026)
- SRC-2989 — Thousand Islands Bridge Authority – Other Facilities & Programs (official site) (Tier 1, official_site; retrieved June 2026)
- SRC-3030 — American Aristocracy — Boldt Castle (Gilded Age history project) (Tier 2, scholarship; retrieved June 2026)
- SRC-3863 — atlasobscura.com (Tier 2, journalism; retrieved June 2026)
- SRC-4698 — Visit 1000 Islands (Tier 2, tourism_org; retrieved June 2026)
- SRC-4699 — Boldt Castle (official, Thousand Islands Bridge Authority) (Tier 1, official_site; retrieved June 2026)
- SRC-5332 — Architectural Afterlife (Tier 3, press; retrieved June 2026)
- SRC-5333 — Boldt Castle: a Virtual Tour (Tier 3, fan_site; retrieved June 2026)
- SRC-5334 — Movies and Mania (Tier 3, press; retrieved June 2026)
- SRC-5335 — Midwest Film Journal (Tier 3, press; retrieved June 2026)
- SRC-7193 — Uncle Sam Boat Tours — A Short History of Boldt Castle in the Thousand Islands (Tier 3, article; retrieved June 2026)
- SRC-9007 — DuPont Castle — Boldt Castle (Tier 2, reference; retrieved June 2026)
- SRC-9008 — When In Your State — Boldt Castle, New York (Tier 2, journalism; retrieved June 2026)
- SRC-9747 — The EOFFTV Review (Encyclopedia of Fantastic Film and Television): Fear No Evil (1980) (Tier 2, film_reference; retrieved June 2026)
How we verify
Every fact above is independently corroborated by at least two reputable sources and
confidence-scored before publication. Claims that cannot clear that bar are withheld. We show the
street address only for non-residential public landmarks (museums, commercial and civic buildings,
publicly documented filming-location sites); the exact addresses of private residences and any
personal information are structurally barred from publication. Last reviewed June 2026.
Plan Your Visit
Hours: Open mid-May through mid-October, daily ~10:30am-5:30pm (admissions booth closes 1 hour before). Self-guided.
Admission: Adults (13+) $12.50, Children (5-12) $9.00, under 5 free. Boat transportation to Heart Island not included.
Frequently asked questions
Where was Fear No Evil filmed?
Boldt Castle, in Alexandria Bay, New York, is a real-world filming location used for Fear No Evil.
Can you visit Boldt Castle?
Yes — Boldt Castle is open to the public. Hours: Open mid-May through mid-October, daily ~10:30am-5:30pm (admissions booth closes 1 hour before). Self-guided.. Admission: Adults (13+) $12.50, Children (5-12) $9.00, under 5 free. Boat transportation to Heart Island not included..
Who designed Boldt Castle?
Boldt Castle was designed by G. W. & W. D. Hewitt.
Where is Boldt Castle located?
Boldt Castle is located in Alexandria Bay, New York.