Hastings Adobe
The Hastings Adobe near Collinsville, California is a ranch dwelling made of adobe that was listed on the National Register of Historic Places in 1972. It is currently on private property, in a state of disrepair and inaccessible to the public. The structure was erected by Lansford Hastings, a lawyer and the author of The Emigrant's Guide to Oregon and California; Hastings' book promoted the Hastings Cutoff, which was a major factor in the Donner party disaster. It is located about  northeast of Collinsville on the south side of County Road 493. References

History of Solano County, California
Buildings and structures in Solano County, California
National Register of Historic Places in Solano County, California
Houses on the National Register of Historic Places in California