In the latter half of the twentieth century, industrial pioneers came to British Columbia with grand plans for resource development projects, many of which never materialized. Unbuilt Environments argues that these kinds of projects have lasting impacts on the natural and human environment - even when they fail. Jonathan Peyton examines a range of archival materials in five case studies. Looking at a closed asbestos mine, an abandoned rail grade, an imagined series of hydroelectric installations, a failed LNG export facility, and a transmission line, Peyton finds that past development failures continue to shape contemporary resource conflicts in the region.