The University of Montana spectrUM Discovery Area will implement “Making Across Montana” —a project to engage K–12 students and teachers in rural and tribal communities with making and tinkering. In collaboration with K–12 education partners in the rural Bitterroot Valley and on the Flathead Indian Reservation, the museum will develop a mobile making and tinkering exhibition and education program. The exhibition will be able to travel to K–12 schools statewide. The project team will develop a K–12 teacher professional development workshop, along with accompanying curriculum resources and supplies. The traveling program and related materials will build schools’ capacity to incorporate making and tinkering—and informal STEM experiences more broadly—into their teaching.