This project examines the feasibility of using cell phone data to estimate fishing activity at lakes, assessing its accuracy in reflecting visitor numbers and identifying fishing-related behaviors. By analyzing cell phone location patterns, visit frequency, and area classification, the research aims to detect fishing trends and explore their potential for estimating fish catches and harvest levels. Additionally, seasonal and geographical variations will be analyzed to understand how fishing activity fluctuates across different lake environments. This research is being conducted in partnership with the Nebraska Game and Parks Commission. Integrating cell phone data analytics into fisheries research could enhance monitoring efficiency, support sustainable resource management, and inform policy decisions to balance recreational fishing with ecological conservation.