Boqueron is a department in the western region of Paraguay. It is the country's largest department, with an area of 91,669 sq. km (35,394 sq mi), but its population is only 45,617 (2002 census). The department includes the Russian Mennonite colonies of Fernheim, Menno and its administrative center Loma Plata and Neuland. The capital is Filadelfia. Other towns are General Eugenio A. Garay, Doctor Pedro P. Peña and Mariscal Estigarribia.