Welcome to ISM-Dickson Mounds

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VISITOR INFORMATION

ISM-Dickson Mounds
10956 North Dickson Mounds Rd
Lewistown, IL 61542
(309) 547-3721

Admission: FREE

Hours:
Tue - Sat: 9 a.m. - 4:30 p.m.

Closed: New Year's Day, Thanksgiving Day, and Christmas Day

ISM-Dickson Mounds, a branch of the Illinois State Museum and listed on the National Register of Historic Places, is one of the major on-site archaeological museums in the United States. It offers a unique opportunity to explore the world of the American Indian in an awe-inspiring journey through 12,000 years of human experience in the Illinois River Valley.

What's happening at ISM-Dickson Mounds...

A watercolor by with brightly colored grasses in reds, yellows, greens, reds, and purples. Within the grasses are three birds including a cardinal and a black bird. In the middle it reads "In flight-Peggy MacNamara"

In Flight - ISM-Dickson Mounds

Open through May of 2026 In Flight features the watercolors of artist Peggy Macnamara. The exhibition focuses on one of her favorite subjects—birds—especially those found in central Illinois. These artworks support the museum’s mission to help people understand and connect with the environment in our region.

Peggy Macnamara - In Flight