High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Big Spring Township is one of the fifteen townships of Seneca County, Ohio, United States. The 2000 census found 1,791 people in the township, 1,565 of whom lived in the unincorporated portions of the township. The village of New Riegel is located in eastern Big Spring Township, and the unincorporated community of Alvada lies in the western part of the township. It is the only Big Spring Township statewide.