Abstract: This study evaluates the geothermal resource, metallic ore, industrial raw material, and lignite potentialof the Çan district (Çanakkale), located at the geo-economic focal point of the Biga Peninsula, from the perspective of sustainable resource management based on water-energy-mining nexus. The evaluation is based on field studies,physicochemical measurements, hydrogeochemical analyses, and institutional data. Among the low- to mediumenthalpy geothermal fields, Bardakçılar, Karaılıca, and Çan-Merkez are utilized for thermal and health tourism,whereas Alibeyçiftliği lacks facilities, with the resource being used directly by local residents. The highest downholetemperatures were measured at Bardakçılar (750 m, 67 ºC) and Karaılıca (450 m, 61.9 ºC). Geothermometer calculations indicate that reservoir temperatures may exceed the measured downhole temperatures, pointing tothe possibility of cascade utilization. The metallic ore endowment of the region is represented by the Halilağa (CuAu) porphyry system; the Ağı Dağı (Au-Ag), Kocayayla (Pb-Zn ± Cu), and Kumarlar (Pb-Zn-Cu ± Au) epithermal systems; and the Yuvalar (Fe-Cu) skarn deposit, associated with ancient metallurgy. The polymetallic nature of these mineralization systems offers potential for the by-product recovery of elements such as Ge, Mo, and Sb, warranting further detailed investigation. The industrial raw material resources, in turn, comprise kaolin, silex, quartz, and feldspar reserves — the primary inputs of the ceramics industry — together with limestone used in the cement andconstruction sectors, and Çan stone, valued as a decorative material. The basin, which holds approximately 92.5million tons of lignite reserves, hosts two thermal power plants with a combined installed capacity of 650 MW. Themining sector, providing direct employment for approximately 7,000 people, constitutes one of the main components of the local economy; however, sectoral dependency and the low female employment rate pose a risk to socioeconomic sustainability. Acid rock/mine drainage poses environmental risks to the ecosystem. In this regard, theutilization of fly ash generated by thermal power plants in the neutralization of acidic drainage and in limiting theoxidation of waste rock is among the proposed circular economy measures. The solar power plant established on therehabilitated lignite site constitutes a concrete example of post-mining land use, and the wider adoption of similar applications is warranted. Expanding the range of geothermal energy use in the region through detailed geophysical surveys and deep drilling is of particular importance. The findings underscore the necessity of holistic measures that balance economic growth with social inclusivity and ecological conservation.