This article analyzes the transformation of the Kızılırmak Delta on the Black Sea coast of Turkey into a Turkish wetland. This production involved the transformation of international categories of wetlands into national imaginaries, as well as the material remaking of landscapes themselves. Population and agro-economic shifts concurrent to the formation of the Turkish nation-state transformed the delta into an agricultural landscape, and subsequently into a contested conservation area whose use is informed by changing Turkish and international notions of wetlands. I focus on the situated, local processes and practices through which wetlands are produced and become relevant to different social groups as subjects of scientific knowledge and environmental imaginations. These, I argue, have rendered the wetland an open-air laboratory and an object of care for environmental advocates, scientists, and residents.