Commerce & Manufacturing That’s the Pits, Too: A Photo of the Consolidated Rock Products Company Plant at Irwindale, 1 August 1929, Part Seven by homesteadmuseum Posted on August 11, 2025August 12, 2025 Read More
Agriculture “The Egypt of the San Gabriel Valley”: A Photo of the Consolidated Rock Products Company Plant at Irwindale, 1 August 1929, Part Two by homesteadmuseum Posted on August 2, 2025August 8, 2025 Read More
Agriculture Rocky Road: A Photo of the Consolidated Rock Products Company Plant at Irwindale, 1 August 1929, Part One by homesteadmuseum Posted on August 1, 2025August 2, 2025 Read More
