The park consists of a giant sequoia (one of the biggest tree species in the world) surrounded by landscaping and marked with a plaque and sign.

The park is named for the 19th-century lawyer and Marion County judge William Waldo, who planted the tree on his property in 1872.

In 1936, the tree was made into a city park as a result of activism by the American War Mothers, with the support of prominent Salem citizens.

The tree is located at the intersection of Union and Summer streets, with Summer Street, a major Salem thoroughfare, temporarily reduced in width to make room for the tree.

This Marion County, Oregon state location article is a stub.