“Quadrula pustulosa” by Freshwater (1908) is a public-domain (CC0) artwork, free to view, download and reuse for any purpose. It is catalogued from the open collection of Smithsonian Open Access.

Quadrula pustulosa

Freshwater

Title	Quadrula pustulosa
Artist	Freshwater
Date	1908 20th century
Medium	Dry
Origin	Minnesota River, Minnesota, United States Minnesota River
Holding institution	Smithsonian Open Access
Rights	Public domain (CC0)

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Updated 2026-09-05