The Arizona sandstone of a Riverside landmark

The Universalist Unitarian Church of Riverside, previously known as the All Souls Universalist Church, is a church located in Riverside, California. It was built during 1891–92 by architect Adam C. Willard. The building is an example of architecture using Permian age Supai sandstone sourced from the Arizona plateau area.

This structure is a rare and elegant example, perhaps the only example for its era in California, of architecture using this specific sandstone. It was listed on the National Register of Historic Places as 'All Souls Universalist Church' in 1978 and is listed as Riverside city landmark #3.

Today, it remains a solid example of architecture using the Permian age Supai sandstone of the Arizona plateau area. Located at Mission Inn Avenue 3525, the church serves as a historic landmark and a notable example of late 19th-century design.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons