The city is replacing sewer and water lines,
but the museum is still open!

The Weston County Museum District serves as a depository and provides professional conservator care of the artifacts of Weston County while maintaining and creating historical exhibits which are a significant part of Weston County history. It maintains both the Anna Miller Museum in Newcastle, Wyoming, and the Red Onion Museum in Upton, Wyoming.


The above image shows one of Newcastle’s truly historic events, never to be forgotten. On May 25, 1903, President Teddy Roosevelt visited Newcastle. From an elaborate platform built for the occasion, the President gave a speech to hundreds of local fans. The platform was built at the intersection of Warren Avenue — today’s Main Street — and Seneca Street. The background of the image shows the north side of today’s Main Street. The large brick building flying American flags was built in 1890 as the Bank of Newcastle. Over the years, it has served as a bank, café, fabric store, gun shop and leather shop. Today, it’s a ceramics store.

The Anna Miller Museum and the Red Onion Museum will be closed the week of November 3rd – 7th for cleaning and organization. We will not be accepting donations the month of November.

  • DOWNLOAD

    The Weston County Museum Brochure

  • TAKE A WALK

    Take a walking tour of Historic Newcastle, Wyoming

  • MAKE THE LOOP

    Explore historic
    Upton, Wyoming

  • NEW!

    Explore Newcastle’s historic
    Greenwood Cemetery