This 0-4-0T (Tank) locomotive was built by the Vulcan Iron Foundry in San Francisco, CA, in 1861 for $4,000. It is stored in a purpose built shed in the grounds of the Cascade Locks Historical Museum in Cascade Locks. The building is not open to the public and getting good photographs was, at best, challenging.
This was the first steam locomotive built on the Pacific Coast and the first to operate in the Pacific North West. It was used on the Oregon Portage Railway to take steamboat passengers and goods 4½ miles past the Cascades Rapids on the Columbia River (now drowned by the Bonneville Dam).