National Historic Landmark · mine · San Jose, California

Casa Grande

Added to the National Register in 1966, and a National Historic Landmark.

National Historic Landmark Listed 1966

Photos via Wikimedia Commons · 6 in the Commons category

The record

Property type	Building
Address	14 mi. S of San Jose on CR G8, San Jose vicinity, CA
County	Santa Clara County
Listed	Oct 15, 1966
Listed for	Industry
Level of significance	National
Also known as	New Almaden Historic District
Reference number	66000236
Type of place	mine, neighborhood
Designations	National Historic Landmark
Contributing resources	6 buildings
Standing	Yes

The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗

Visiting

Address	14 mi. S of San Jose on CR G8, San Jose, CA
Coordinates	37.1784° N, 121.8195° W · Directions ↗
Also in San Jose	34 listed places in San Jose →
Nearest national park unit	Eugene O'Neill National Historic Site · 46 miles · on Park Atlas

Listing on the Register does not open the door. Unless a museum or park runs it, treat this as private property and see it from the sidewalk.

At a glance

State: California
County: Santa Clara County
Listed: 1966
Type: Building
Landmark: Yes

Cell signal

Verizon: 4G LTE
AT&T: no reported coverage
T-Mobile: no reported coverage

Outdoor coverage as modeled by carriers in FCC filings as of 2025-12-31. This product uses FCC APIs and/or Data but is not endorsed or certified by the FCC.

Official links

Sister site

Park Atlas

Every unit of the National Park System, with its fees, hours, alerts and campgrounds.

Open Park Atlas →

This record is built from National Park Service sources, re-read every Saturday, and Wikidata, re-read on the first Saturday of each month. Register Atlas is independent and is not affiliated with any agency, and a listing does not mean a place is open to visitors. How the data is built →

Explore

Map

Nearby in Santa Clara County

All listings in Santa Clara County →

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Yung See San Fong House

BuildingListed 1983

Historic district · 13.6 km

Fairglen Additions (Unit 1, Unit 2, and Unit 3)

Historic districtListed

Local history books for San Jose

We earn a small commission if you buy through these links. It does not change what we list.

San Jose's Japantown
James Nagareda, 2017
Find at Bookshop.org
Portuguese in San Jose
Meg Rogers and Portuguese Historical Museum, 2007
Find at Bookshop.org
Chinese in San Jose and the Santa Clara Valley
Chinese Historical and Cultural Project and Lillian Gong-Guy, 2007
Find at Bookshop.org
Alviso, San Jose
Robert Burrill and Lynn Rogers, 2006
Find at Bookshop.org

Guidebooks to historic places in California

Walking L.A
Erin Mahoney Harris, 2017
Find at Bookshop.org
Secret stairs: East Bay
Charles Fleming, 2011
Find at Bookshop.org
Sacramento remembers the Civil War
Robert F. Bundy, 2010
Find at Bookshop.org

Titles come from Open Library's catalog, matched by subject heading or by title.

Reference

Questions people ask

When was Casa Grande listed on the National Register?

Oct 15, 1966. It is also a National Historic Landmark, the higher of the two designations.

Source: National Park Service

Where is Casa Grande?

14 mi. S of San Jose on CR G8, San Jose vicinity, Santa Clara County, California. The nearest national park unit is Eugene O'Neill National Historic Site, 46 miles away.

Source: Eugene O'Neill National Historic Site

What does the Casa Grande listing include?

The listing counts 6 contributing resources. Those are 6 buildings. A contributing resource is a part of the listed property that carries its historic significance.

Source: National Park Service

Where is the nomination form for Casa Grande?

The National Archives holds the nomination form, the document that made the case for listing.

Source: National Archives

Is there cell service at Casa Grande?

FCC coverage maps show Verizon 4G LTE at the listed point. Coverage indoors and behind old masonry is another matter.

Source: FCC Broadband Map

Sources

Location, type and contributing counts come from the National Park Service's National Register spatial data. Listing dates come from the National Register office's spreadsheet where it carries the listing. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 66000236. Nothing here is transcribed by hand. The nomination form and photographs ↗ at NPGallery are the original nomination as filed with the National Park Service, and the form is often the best description of the place.