Discover the Northwest Territory

Welcome to Campus Martius and the Ohio River Museums

Join Us for an Upcoming Event

Explore a membership and save on every visit

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Explore a membership and save on every visit ·

We believe our history belongs to everyone.

The Northwest Territory Museum Society preserves and shares the stories of America's earliest western frontier, from the founding of Marietta and the Northwest Territory to the riverboats and inland waterways that carried a nation forward.

Campus Martius Museum and the Ohio River Museum are your gateway to all of it.

A large group of students and a few adults gathered in a museum exhibit hall, surrounded by historical displays and artifacts.

  • Campus Martius Museum Hours

    Monday - Saturday: 9:30 a.m. - 5:00 p.m.
    Sunday: 12:00 p.m. - 5:00 p.m.

    Closed: New Year’s Day, Easter, Thanksgiving, Christmas Eve, Christmas Day

  • Friends of the Museums or Ohio History Connection Member: Free

    Adult: $10

    Students K to College (with ID): $5

    Children 5 and under (excludes groups): Free

    Active Duty Military & Veterans (with ID): $5.00

    See our groups page for school and workshop rates

  • We’d love to welcome your class field trip or adult group trip! Please visit our Groups Page for information on how to make your reservation.

  • Free parking is available at the rear of the museum and on-street. Campus Martius Museum’s three floors of exhibits are wheelchair accessible, excluding the second floor of the Rufus Putnam House.

    See a map on our Contact page.

  • Todd Burge and Larry Groce inside the Putnam House

    OneVote! The Musical

  • A rustic bedroom with a four-poster bed with a yellow valance, wooden beams on the ceiling, a brick fireplace, and wooden flooring.

    Take a virtual tour of the Putnam House

  • A museum exhibit room with a woman talking to children, some standing and some sitting, surrounded by historical display artifacts and informational panels.

    Schedule a field trip for your class

    Get more info
  • Historical map background with portraits of a military officer and a group of Native Americans in a teepee.

    Featured Exhibit: Mark Well the Land