Est. 1989











Lewis and Clark County Historical Society History Center is now open Thursdays and Fridays from 10am to 5pm and Saturday from 10am until 3pm, in the historic Steamboat Block, at 618 Helena Avenue in downtown Helena! While you’re there, be sure to stop in the museum store with books, t-shirts, etc. in honor of our generous benefactor Will Greiner.
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We host a variety of events throughout the year, including lectures, workshops, tours and more. Check out upcoming gatherings to learn, explore, and connect with others who share a passion for local heritage.

Your Board of Directors meet every second Tuesday of the month at noon in the History Center. Members and guests are most welcome! The annual members’ meeting and the President’s annual report to the community is held on the first Thursday of June. Members are welcome!
Date: November 10, 2026
Time: 12:00 PM
Location: 618 Helena Ave.

John Barrows presents his one man show about one of Helena’s early notorious pro-slavery characters; Robert S. Kelley. Kelley was one of the first gold seekers to use the Bozeman Trail. Coming to Last Chance Gulch on the heels of the Four Georgians, Kelley filed the second mining claim in Helena’s Grizzly Gulch He was appointed the U.S. Marshall for the Montana Territory in 1884. Kelley was also the Supt. of the Montana Territorial Prison in Deer Lodge. You have seen him as Dr. Glick but Barrows’ portrayal of Kelley is simply a show stopper!
The program starts at 7 p.m. on Tuesday, November 10th. Refreshments are served. Location is the Lewis & Clark County History Center at 618 Helena Avenue in the Steamboat Block downtown Helena.
Date: November 10, 2026
Time: 7:00 PM
Location: 618 Helena Ave.

Ever wondered about what Lewis and Clark County was like BEFORE the Lewis and Clark expedition arrived? Bring your curiosity to your History Center (618 Helena Ave. in the Steamboat Block) at 7 pm on Tuesday, October 13th for a program about the people of Lewis and Clark County before the Lewis and Clark expedition arrived.
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The area that became Lewis & Clark County was created within Montana Territory in 1864. Originally titled Edgerton County after Montana’s first territorial governor, the jurisdiction was renamed in 1868 for the Lewis & Clark expedition which traversed it twice, once in 1805 and again in 1806.
In 1872 its boundaries were redefined, taking on, for the most part, its existing appearance. Covering over 3,000 square miles, it occupies sections of such famous land forms & features as the Rocky Mountain Front, the Continental Divide, the Big Belt Mountains, the Over-thrust Region and the Missouri River.
Rich in resources and scenic beauty, the County has attracted the attention of people from the earliest known times of North American human occupation to the present.
Learn moreA significant part of our mission is dedicated to illustrating our history through both in-house and traveling exhibits.
Garments of an Era is our newest exhibit. Showing vintage clothing from a Helena family that dates back to 1880, these garments are amazing.

Communications Exhibit features a large collection curated by East Helena’s John Barrows.

All western Montana trails led to the Helena area, including several Native American trails and three major wagon routes.

We are a community of historic organizations and invite you to visit other local historical societies and museums located throughout Lewis and Clark County and the surrounding areas.
The Lewis & Clark County Community has a rich and diverse history. A travel stop on the Missouri River for centuries, our diverse community’s economy includes mining, ranching, manufacturing, logging, government (Helena is the state capitol), farming, transportation, military and recreation. While Helena is the largest city in the county, a number of other communities are spread across the county.
Find communities
Our research center and archives features work stations with free computer and printer use and complete internet access for researchers. You can digitally access the historic newspapers that served the communities in Lewis & Clark County during the past 150 years.
Our archives contain a variety of historical documents and records that are invaluable for research and preserving the heritage of Lewis & Clark County.
Stop in the History Center to view our research resources or contact us to learn more about how we can assist with your historical inquiries.
Start your research

Join the Lewis & Clark County Historical Society to support local history and enjoy year-round benefits at the History Center and beyond.
Become a member
The Lewis & Clark County Historical Society is historically an all-volunteer organization. You can volunteer on your own time and schedule, and contribute in a variety of ways.
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