The University of Montana's Mansfield Library website offers a collection of photos of life in Montana from the late 1800s to the 1950s. Interestingly, the "photographs were used extensively in historic research required by the Superfund law when the Milltown Reservoir was designated a Superfund site in early 1980." Visitors can browse the 1760 item collection via the "Montana Memory Project" link near the top of the page. Those who want to search the collection can use the drop down boxes below the browse link, and choose "Search All Words", "Search Any Word", or "Match Exact Phrase". Interested users can retrieve over 100 photos of saw mills and copper mills simply by putting mill in the "search any word" drop down box on the homepage. The importance of the mill in the community is evident where the mill is identified in photos even when only the tiniest sliver of it is visible.