St. Croix Boom Company House and Barn

The St. Croix Boom Site is a historic and scenic wayside on the St. Croix River in Stillwater Township, Minnesota, United States. It commemorates the location of a critical log boom where, from 1856 to 1914, timber from upriver was sorted and stored before being dispatched to sawmills downstream. The site was developed as a roadside park along Minnesota State Highway 95 in the 1930s. In 1966 it was designated a National Historic Landmark for its national significance in the theme of industry. It was nominated for being the earliest, most important, and longest serving of the log storage and handling operations that supported Minnesota's major logging industry. Virtually no traces remain of the site's original buildings and structures.

The Pest House in Stillwater Township, Minnesota, United States, is a former quarantine facility used by the city of Stillwater circa 1872 to 1910. It is a rare surviving example of a pest house, a common public health strategy of the late 19th and early 20th centuries, where people with contagious diseases were isolated. It was listed on the National Register of Historic Places in 1980 for having local significance in the theme of health/medicine. The original three-room Pest House has been converted into a private residence, with the addition of a porch on the southeast and a rear wing to the northwest.

Houlton is an unincorporated census-designated place located in St. Croix County, Wisconsin, United States. Houlton is located across the St. Croix River from Stillwater, Minnesota, in the town of St. Joseph. Houlton has no post office but has been assigned the ZIP code 54082. As of the 2010 census, its population was 386.

The Minnesota Territorial Prison, later the Minnesota State Prison, was a prison in Stillwater, Minnesota, United States, in operation from 1853 to 1914. Construction of the prison began in 1851, shortly after Minnesota became a territory. The prison was replaced by the Minnesota Correctional Facility – Stillwater in nearby Bayport. Most of the original prison's structures were demolished in 1936, leaving only the 1853 Warden's House and a manual labor complex that had been constructed 1884–1898. The surviving factory buildings were listed on the National Register of Historic Places in 1982 for having state-level significance in the themes of industry and social history. The historic site, long since unused, was destroyed by arson on September 3, 2002. It was formally delisted from the National Register in 2005.

The Warden's House Museum is a historic house museum in Stillwater, Minnesota, United States. From 1853 to 1914 it was the official residence for the wardens of what began as the Minnesota Territorial Prison and became the Minnesota State Prison upon statehood in 1858. The Washington County Historical Society has operated the house since 1941, making it the second-oldest house museum in Minnesota. It was listed on the National Register of Historic Places in 1974 as the Minnesota Territorial/State Prison Warden's House for its state-level significance in the themes of architecture and social history. It was nominated for being the only surviving structure of the prison's Minnesota Territory period and the chief remnant of its statehood years.

Stillwater Township is a township in Washington County, Minnesota, United States. The population was 2,553 at the 2000 census.

Isaac Staples' Sawmill is a historic industrial property in Stillwater, Minnesota, United States, consisting of an 1850 stone powerhouse and a 1900 metal-clad factory. The property was listed on the National Register of Historic Places as St. Croix Lumber Mills—Stillwater Manufacturing Company in 1982 for its local significance in the theme of industry. It was nominated because the powerhouse is the only surviving industrial building associated with Isaac Staples (1816–1898), a major figure in Minnesota's early commercial development. The property now operates as a shopping mall with upper level apartments.

The Ivory McKusick House is a historic house in Stillwater, Minnesota, United States, completed in 1872 for Ivory McKusick (1827–1906). It was listed on the National Register of Historic Places in 1982 for having local significance in the themes of architecture and commerce. It was nominated as a striking example of Second Empire architecture in the region and for its associations with a notable family in early Stillwater. McKusick had built his wealth via the lumber industry and government contracts during the Civil War. His older brother John had helped establish the first sawmill in the vicinity in 1843, named and platted the community that grew around it after his hometown in Maine, and served as its first mayor.

The Chicago, Milwaukee and St. Paul Freight House is a historic former railway station in Stillwater, Minnesota, United States, built in 1883 as a passenger and freight depot for the Chicago, Milwaukee and St. Paul Railway (better known as the Milwaukee Road). It was listed on the National Register of Historic Places in 1977 for having local significance in the themes of commerce, communications, engineering, and transportation. Its notability derives in part from its long service to Stillwater; nearly all goods shipped to and from the city passed through this station, and up to the 1920s it hosted critical telegraph and Railway Express Agency offices. The building is also noted as a somewhat rare example of a combination freight and passenger station, and for the engineering of its internal wood construction. It is also a contributing property to the Stillwater Commercial Historic District. The station closed in 1970 and now houses the Freight House Restaurant.

The Stillwater Commercial Historic District encompasses 11 downtown blocks in Stillwater, Minnesota, United States. It comprises 63 contributing properties built from the 1860s to 1940. It was listed as a historic district on the National Register of Historic Places in 1992 for its local significance in the themes of architecture and commerce. It was nominated for reflecting the economic and architectural diversity of a prosperous lumbering and manufacturing center.

The William Sauntry House and Recreation Hall is a historic property in Stillwater, Minnesota, United States, consisting of a late-nineteenth-century house and a 1902 addition styled after a Moorish palace. It was listed on the National Register of Historic Places in 1982 for its local significance in the themes of architecture and industry. It was nominated for its association with prosperous local lumberman William Sauntry (1845–1914) and for its fanciful recreation hall, one of Minnesota's best examples of a folly and a rare use of Moorish Revival architecture. Now in separate ownership, the recreation hall has been restored as a private home while the William Sauntry Mansion operates as a bed and breakfast.

The Mortimer Webster House is a historic house in Stillwater, Minnesota, United States, constructed 1865–1866. It is listed on the National Register of Historic Places in 1982 for having local significance in the themes of architecture and commerce. It was nominated for being one of the best examples of Italianate architecture in Stillwater, and for its association with Mortimer Webster, one of the town's notable early entrepreneurs.