🏆🏆🏆🏆🏆 Oregon’s Only Operating Mill — 1862 water-powered flour mill still operating with original equipment — Oregon’s only remaining pioneer mill
Thompson’s Mills State Heritage Site preserves a fully intact, water-powered flour mill built in 1862 along the Calapooia River in the Willamette Valley. It is the only pioneer-era flour mill in Oregon still operating with its original equipment — including the massive millstones, grain elevators, and water turbines. The mill operated commercially for over 100 years and now serves as a working museum demonstrating 19th-century milling technology. The site includes the mill building, mill pond, manager’s house, and grain storage facilities.
Visitor Information
| Detail | Information |
|---|---|
| Location | Shedd, Linn County, OR |
| Entry Fee | Free |
| Built | 1862 (still operating!) |
| Power | Water turbine (original) |
| Status | Oregon’s only remaining pioneer mill |
Frequently Asked Questions
Does the mill still grind flour?
Yes — during demonstrations, the original equipment grinds grain using water power from the Calapooia River, exactly as it did in 1862. Tours are available by appointment — contact the park directly.
About Thompson’s Mills
Thompson’s Mills State Heritage Site preserves Oregon’s oldest continuously operating water-powered mill — running since 1858! The flour mill on the Calapooia River is a time capsule of 19th-century water power technology, with much of the original milling equipment still intact and operational.
Things to Do
Guided tours demonstrate the working water-powered milling machinery — a fascinating look at pioneer engineering. The mill pond and Calapooia River offer peaceful walking. The site hosts an annual harvest festival with milling demonstrations. Open weekends year-round.
More parks nearby: Seneca Fouts Memorial State Natural Area is a short drive away, while Bowers Rock State Park lies a short drive away.
⚙️ Visit Thompson’s Mills SHS
1862 water mill — Oregon’s only pioneer flour mill still operating with original equipment.
Wildlife & Nature
Thompson’s Mills SHS — the oldest continuously operating water-powered mill in Oregon (1858). The mill’s race, pond, and surrounding wetlands support great blue herons, wood ducks, and river otters. The original turbines and milling equipment still function.
Nearby Attractions
Shedd — adjacent. Willamette Valley — surrounding. Albany — 10 miles north.
Park Location
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