Jon Axline has been the historian at the Montana Department of Transportation since 1990. When not sweating over the state's historic roads and bridges, he conducts cultural resource surveys and writes the MDT's roadside historical and geological interpretive markers. He is a regular contributor to Montana The Magazine of Western History and Montana Magazine. He is also author of Conveniences Sorely Needed: Montana's Historic Highway Bridges and editor of Montana's Historical Highway Markers.