Cache is a large plastic container.
The Duggan Dam is situated in a pretty valley surrounded in bush that is full of wildflowers and birdlife. Mallee hens frequent the area. The dam was built in close proximity to the railway siding as a water supply to the steam trains in the early 20th century. Duggan Siding was officially opened (alongside Tarin Rock Siding) on 25 November 1916 and closed on 10 February 1975. The siding is still marked by a Western Australian Government Railways overhead water tank, which is sturdily constructed from wood pylons. The pumping shed also remains.