Shenandoah–Dives Mill
United States historic place in Silverton, Colorado. Added to the National Register in 2000, and a National Historic Landmark.
What it is
The Shenandoah-Dives Mill or Mayflower Mill is an intact and functional but inactive historic ore mill 2 miles (3.2 km) east of Silverton, Colorado, United States. The mill was built in 1929 to recover gold, silver, lead, zinc, and copper from ore mined at the Mayflower mine and brought to the mill by an aerial tramway. Regularly active until 1945, it houses still-functional equipment for the separation by flotation of metals from crushed ores. It is the only intact and functional mill of its kind in Colorado. It was included in the expanded Silverton Historic District in 1997, and was declared a National Historic Landmark on its own in 2000. The mill is owned by the San Juan County Historic Society, which staffs an information and gift shop at the mill under the name Mayflower Mill. The mill is open for self-guided tours in the summer months.
Text from Wikipedia, CC BY-SA 4.0.
The record
| Property type | Building |
| Address | CO 110, 2 mi. NE of Silverton, Silverton vicinity, CO |
| County | San Juan County |
| Listed | Feb 16, 2000 |
| Listed for | Industry, Engineering |
| Level of significance | National |
| Also known as | Mayflower Mill |
| Reference number | 00000262 |
| Type of place | factory, mill |
| Designations | National Historic Landmark |
| Contributing resources | 2 buildings, 2 structures |
| Standing | Yes |
The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗
Visiting
| Address | CO 110, 2 mi. NE of Silverton, Silverton, CO |
| Coordinates | 37.8289° N, 107.6275° W · Directions ↗ |
| Nearest national park unit | Curecanti National Recreation Area · 47 miles · on Park Atlas |
| Federal campgrounds nearby | South Mineral 8 miles · Amphitheater (Co) 14 miles · Matterhorn 14 miles |
Explore
Drawings & photographs
Measured drawings and photographs from the Library of Congress. Public domain. All 1 record ↗
Map
Nearby in San Juan County
Public land around it
| San Juan National Forest ↗National Forest, U.S. Forest Service | Inside the boundary2,094,539 acres |
Wilderness Atlas publishes a centroid and an acreage for each unit, not a boundary line. Distance here is measured to a circle of the same area drawn around that centroid, so treat it as roughly right rather than surveyed.
Colorado travel guides
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Titles come from Open Library's catalog, matched by subject heading or by title.
Reference
Questions people ask
When was Shenandoah–Dives Mill listed on the National Register?
Feb 16, 2000. It is also a National Historic Landmark, the higher of the two designations.
Source: National Park Service
Can I visit Shenandoah–Dives Mill?
Yes. Shenandoah–Dives Mill is recorded as open to the public.
Source: Wikidata
Where is Shenandoah–Dives Mill?
CO 110, 2 mi. NE of Silverton, Silverton vicinity, San Juan County, Colorado. The nearest national park unit is Curecanti National Recreation Area, 47 miles away.
What does the Shenandoah–Dives Mill listing include?
The listing counts 4 contributing resources. Those are 2 buildings and 2 structures. A contributing resource is a part of the listed property that carries its historic significance.
Source: National Park Service
Are there historic photographs or drawings of Shenandoah–Dives Mill?
Yes. The Historic American Buildings Survey at the Library of Congress has drawings or photographs of it.
Source: Library of Congress
Where is the nomination form for Shenandoah–Dives Mill?
The National Archives holds the nomination form, the document that made the case for listing.
Source: National Archives
Are there campgrounds near Shenandoah–Dives Mill?
Three federal campgrounds are within reach. The closest is South Mineral, 8 miles away. Amphitheater (Co) is 14 miles away, and Matterhorn is 14 miles away.
Source: Campsite Atlas
Is there cell service at Shenandoah–Dives Mill?
FCC coverage maps show Verizon 4G LTE, AT&T 4G LTE, and T-Mobile 5G at the listed point. Coverage indoors and behind old masonry is another matter.
Source: FCC Broadband Map
Is there a wildfire near Shenandoah–Dives Mill right now?
2 active incidents within 50 miles as of 2026-10-17, nearest Gold Mountain, 16 miles away.
Source: 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 00000262. 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. The description under "What it is" is the opening of the Wikipedia article, CC BY-SA. Drawings and photographs are Historic American Buildings Survey records at the Library of Congress, public domain.