Like in many communities, tree care in Casper, Wyo. was largely reactive and just one of many duties performed by the Public Services Department staff. Year after year of seeing trees removed without a plan for replacement worried the city staff members who performed tree work. No one, however, had any basis for articulating an argument that Casper’s prized legacy—their tree canopy—was poised for imminent decline. The last large scale tree planting initiative in Casper was at the end of World War II and their urban forest, full of Siberian elms, was not aging gracefully. For a few staff members, finding a way to make a compelling argument to care for community trees that was cost effective, accessible and credible became their personal charge.