Grey Towers National Historic Site is a Châteauesque landmark in Milford, Pennsylvania. Built in 1886, it was designed by Richard Morris Hunt, and is a National Historic Landmark. It is owned by USDA Forest Service.
Location: 151 Grey Towers Drive, Milford, Pennsylvania, United States
Verified facts
- Located in Milford Township, Milford
confidence 75/100 · 3 recorded source groups · SRC-1955, SRC-1956, SRC-3730 - Designed by Richard Morris Hunt
confidence 75/100 · 3 recorded source groups · SRC-1956, SRC-1957, SRC-3730 - Built in 1886
confidence 70/100 · 2 recorded source groups · SRC-1955, SRC-1958 - Architectural style: Châteauesque
confidence 75/100 · 3 recorded source groups · SRC-1956, SRC-1957, SRC-3730 - Historic designation: National Historic Landmark
confidence 75/100 · 3 recorded source groups · SRC-1956, SRC-1959, SRC-3730 - Designed by Richard Morris Hunt
confidence 90/100 · 4 recorded source groups · SRC-3576, SRC-1956, SRC-3730, SRC-1959, SRC-7047 - Designed by Richard Morris Hunt
confidence 90/100 · 4 recorded source groups · SRC-3576, SRC-1956, SRC-3730, SRC-1959, SRC-7047 - Designed by None
confidence 80/100 · 4 recorded source groups · SRC-1956, SRC-3730, SRC-7150, SRC-1959
Ownership history
Current owner — USDA Forest Service
confidence 95/100 · SRC-1955, SRC-1956, SRC-3730, SRC-6457, SRC-6458
Evidence & sources
- SRC-1955 — USDA Forest Service — Grey Towers National Historic Site, About the Site (Tier 1, official_archive; retrieved June 2026)
- SRC-1956 — Wikipedia — Grey Towers National Historic Site (Tier 3, encyclopedia; retrieved June 2026)
- SRC-1957 — Pennsylvania Conservation Heritage — Grey Towers (Tier 2, institutional_page; retrieved June 2026)
- SRC-1958 — Grey Towers Heritage Association — Grey Towers (Tier 2, institutional_page; retrieved June 2026)
- SRC-1959 — USDA Forest Service — Grey Towers National Historic Site (search result, fs.usda.gov) (Tier 1, official_archive; retrieved June 2026)
- SRC-3576 — nps.gov (Tier 1, official_archive; retrieved June 2026)
- SRC-3730 — nps.gov (Tier 1, official_primary; retrieved June 2026)
- SRC-5892 — USDA Forest Service — Grey Towers National Historic Site, Contact Us (Tier 1, government; retrieved June 2026)
- SRC-5893 — Pike County, PA (pikepa.net) — Grey Towers National Historic Site (Tier 2, government; retrieved June 2026)
- SRC-6457 — Grey Towers National Historic Landmark – Forest History Society (Tier 2, nonprofit-historical-society; retrieved June 2026)
- SRC-6458 — Grey Towers National Historic Site – Discover NEPA (Tier 3, tourism/regional; retrieved June 2026)
- SRC-7047 — Forest History Society – Grey Towers Estate History (Tier 2, history_organization; retrieved June 2026)
- SRC-7150 — BIG OLD HOUSES: Liberal Towers (Grey Towers, Milford) — John Foreman (Tier 3, blog; 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: Grounds open sunrise-sunset year-round. Mansion guided tours Mon, Thu, Fri, Sat, Sun 11:00-16:00 (closed Tue/Wed); limited services in winter.
Admission: Mansion tour: adult/senior $10, youth (12-17) $5, under 12 free; 50% discount for America the Beautiful pass holders. Grounds free.
Frequently asked questions
Can you visit Grey Towers National Historic Site?
Yes — Grey Towers National Historic Site is open to the public. Hours: Grounds open sunrise-sunset year-round. Mansion guided tours Mon, Thu, Fri, Sat, Sun 11:00-16:00 (closed Tue/Wed); limited services in winter.. Admission: Mansion tour: adult/senior $10, youth (12-17) $5, under 12 free; 50% discount for America the Beautiful pass holders. Grounds free..
Who designed Grey Towers National Historic Site?
Grey Towers National Historic Site was designed by Richard Morris Hunt.
Where is Grey Towers National Historic Site located?
Grey Towers National Historic Site is located in Milford, Pennsylvania.