State atlas · filed under CA
Ghost Towns of California
California invented the American boomtown and has buried more of them than any state: Gold Rush camps of the Sierra, borax and silver towns of the deserts, utopian colonies, and company towns — each wave leaving its own ring of ruins.
4,017 sites surveyed across California — 19 charted with full records so far, entered by year of settlement. The rest are awaiting verification.
Survey note
The federal place-name archive records 4,017 vanished or historical sites in California — ghost towns, mining camps, townsites, and railroad stops. We chart them a few at a time, as the records can be verified. Every mark on this map is a place that once had a name.

Society Pro
See California as the surveyors drew it, 1879 to 1919
1,549 USGS survey sheets from those years cover California. Pro lays them over today's map with a swipe between then and now, and adds every mine feature, lost place and mineral site the federal record holds for the state.
The full survey ledger
Every vanished town the federal archive records in California — each with its own record page, verified and expanded over time.