Bourn Cottage (Empire Cottage, Empire Mine) is a Tudor Revival cottage in Grass Valley, California. Built in 1897, and is listed on the U.S. National Register of Historic Places.
Location: Grass Valley, California, United States
Verified facts
- Located in Grass Valley
confidence 85/100 · 3 independent sources · SRC-2719, SRC-2720, SRC-3788 - Built in 1897
confidence 70/100 · 3 independent sources · SRC-2719, SRC-2720, SRC-6894 - Architectural style: Tudor Revival
confidence 75/100 · 4 independent sources · SRC-2720, SRC-2719, SRC-6895, SRC-6894 - Historic designation: National Register of Historic Places; California Historical Landmark
confidence 85/100 · 3 independent sources · SRC-2719, SRC-2722, SRC-2921
Evidence & sources
- SRC-2719 — Empire Mine State Historic Park — Wikipedia (Tier 2, encyclopedia; retrieved June 2026)
- SRC-2720 — Grass Valley — Visit California (Tier 2, official_tourism; retrieved June 2026)
- SRC-2722 — Empire Mine — California Office of Historic Preservation (Landmark No. 298) (Tier 1, official_archive; retrieved June 2026)
- SRC-2921 — National Park Service — NPGallery, National Register of Historic Places Asset Detail: Empire Mine (NRIS ID 77000318) (Tier 1, official_archive; retrieved June 2026)
- SRC-3788 — ca.gov (Tier 1, official_primary; retrieved June 2026)
- SRC-6894 — Digital Public Library of America (DPLA) — The Bourn Cottage, Empire Mine State Historic Park (Tier 2, library/archive-metadata; retrieved June 2026)
- SRC-6895 — Highway 49 Gold Rush Country: Grass Valley – Empire Mine State Historic Park – Weekend Adventures Update (Tier 3, media; retrieved June 2026)
Photos
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.