Discover Hermosa: HAHA Museum and local history

Hermosa’s local history comes into focus in different ways: the HAHA Museum and Community Center is housed in a former school building, the Doug Hesnard Memorial Garden commemorates an individual, and the Council Oak Tree stands on the banks of Battle Creek. These stories differ in scale and time frame—from the year a building was constructed to the age of an old tree. The museum’s seasonal hours and the date of a planned event are also especially important when planning a visit.

A building with several historic chapters

The building that now houses the HAHA Museum was built in 1889 as Hermosa Public School. Later, it was moved to its current location using many teams of horses. On February 17, 2009, the building was added to the National Register of Historic Places as Hermosa Masonic Lodge. The construction year and the register listing record different chapters: its original use as a public school and its later inclusion under the name Hermosa Masonic Lodge. The building’s history therefore cannot be reduced to its construction year; its relocation and current use as a museum are also part of its story. For travelers interested in history, this sequence of school, relocation, and museum offers a concrete perspective on Hermosa’s past.

Plan opening hours and tours

The HAHA Museum and Community Center is located at 25 North 2nd Street in Hermosa. In June, July, and August, the museum is open Wednesday through Saturday from noon to 4 p.m. Check these seasonal hours again before you arrive. You can email to request a special tour; arrange the tour directly before your visit. Regular opening hours and a requested special tour are two separate aspects of your planning.

A memorial at the museum

The Doug Hesnard Memorial Garden was created in front of the HAHA Museum to honor Doug Hesnard’s love of flowers and gardening. Unlike the school building’s construction and use history, this garden centers on a personal memorial. It adds a biographical dimension to Hermosa’s cultural history alongside the story of the school building’s development.

The Council Oak Tree on Battle Creek

The Council Oak Tree has stood on the banks of Battle Creek for more than 400 years. It is considered the largest bur oak in South Dakota and has witnessed the development of history in this area. The tree and the museum building represent different time scales: the building’s construction, relocation, and register listing followed one another, while the tree represents a presence on the riverbank spanning more than four centuries. For your trip, this comparison offers a different perspective on Hermosa’s history than architecture alone.

A planned event date

HAHA’s Christmas Carnival is an annual event to thank local residents. It is planned for December 6, 2026, at Hermosa School. The program is set to include Santa and Mrs. Santa, food, children’s games, a Santa Store, and arts and crafts vendors. Another recurring feature is a free soup supper prepared by HAHA members. Check before you arrive whether it is included in that year’s program. The planned date makes the Carnival a time-specific event, so it requires different planning from a visit during the museum’s seasonal opening hours.

Discover more destinations: Custer

For the broader travel overview: Custer County.