In 1804, the Irish convict-turned-surveyor James Meehan drafted a map (Monmouth 0) of the area around Britain’s new settlement in the colony of Van Diemen’s Land (Tasmania, Australia). This map describes the terrain and vegetation and guided decision-making by the colonial government for the first few years of the colony’s existence. Despite its importance, it was neither copied nor distributed further than the immediate land it described. For the first time, it has been fully transcribed so that we might examine the fine details. This article argues that despite remaining as a manuscript map, Monmouth 0 is a perfect demonstration of British colonial land management policy as it directed the colonial effort to make their presence permanent on the island of Van Diemen’s Land.