
14 miles away

A dam on the Hassayampa River north of Wickenburg, built from 1886 for gold mining, whose failure in 1890 killed over 100 people.
Walnut Grove Dam stood on the Hassayampa River north of Wickenburg, Arizona. It was built between 1886 and 1888, chiefly on the impetus of the Bates family, and was intended to serve gold mining. The dam failed in 1890, before it could be put to use, and more than 100 people were killed.
Walnut Grove Dam is a historic site near Yarnell, in Yavapai County. It is one of the historic sites in this database, and appears in the statewide ranking of Arizona attractions.
No official visitor count is published for Walnut Grove Dam, so its score rests on public interest and tourism significance, and is capped below the level a measured attraction can reach. That is why the medium confidence above is not higher. The weighting is explained in full on the methodology page, and every axis is broken out under Facts and sources at the foot of this page.
Note on the data: No official visitor count is published for this attraction.
Record last verified 2026-08-12.



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