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 recorded source groups · SRC-0284, SRC-0285, SRC-0462 - Designed by G. W. & W. D. Hewitt
confidence 80/100 · 7 recorded source groups · SRC-0285, SRC-0286, SRC-3030, SRC-3863, SRC-5332, SRC-5333, SRC-9007 - Built in 1900
confidence 75/100 · 3 recorded source groups · SRC-0284, SRC-0285, SRC-0463 - Architectural style: Châteauesque
confidence 80/100 · 4 recorded source groups · 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 recorded source groups · SRC-0287, SRC-0288, SRC-2988 - Appeared in Fear No Evil (movie, 1981) — as filming location
confidence 80/100 · 6 recorded source groups · SRC-0285, SRC-0289, SRC-5334, SRC-5335, SRC-9008, SRC-9747 - Owned by Thousand Islands Bridge Authority
confidence 90/100 · 4 recorded source groups · SRC-0284, SRC-0285, SRC-2989, SRC-3863 - Built in 1900
confidence 95/100 · 5 recorded source groups · 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
The entries above show the sources and confidence scores recorded in our fact ledger.
Source tiers are internal classifications, not guarantees of accuracy or independence.
Several sources may repeat the same underlying account; a source count alone does not establish independent corroboration. 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
How is Boldt Castle connected to Fear No Evil?
Boldt Castle, in Alexandria Bay, New York, has a documented connection to Fear No Evil. Read the sourced facts on this page for the type of connection.
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.