The Great Northern Depot in Skykomish, Washington, United States, is a former train station and local history museum.

It was built by the Great Northern Railway in 1894 to serve the town of Skykomish, which had been founded as a division point on the railroad.

[3] The railyard adjacent to the depot had been seeping oil and heavy metals into the ground and nearby Skykomish River for most of the 20th century, requiring extensive environmental remediation.

Following the discovery of contaminated soil and groundwater in the 1980s, Burlington Northern and its successor, BNSF Railway, agreed to fund several mitigation and cleanup projects under the supervision of the Washington State Department of Ecology.

[7] The area around the depot was developed into a ridable miniature railway that operates seasonally on a 7+1⁄2 in (190.5 mm) gauge with steam locomotives.