Arakawa, Tokyo Arakawa, Tokyo Arakawa has sister-city relationships with Donaustadt in Vienna, Austria, and with Corvallis, Oregon, U.S. Domestically, it has similar relationships with nine cities, towns and villages. As of May 1, 2015, the ward has an estimated population of 208,763, and a population density of about 20,550 persons per km². The total area is 10.16 km². Arakawa is in the northeastern part of Tokyo. The shape is long and narrow, stretching from west to east. The Sumida River forms the northern boundary. The ward is surrounded by five other special wards. To the north lies Adachi; to the west, Kita;
Two Rivers, Alaska Pole or the area's military installations, Eielson Air Force Base and Fort Wainwright. Businesses in Two Rivers include one general store, restaurants, a post office, a laundromat and the former HIPAS Observatory, which closed in 2011. Most people who move to Two Rivers are attracted by the rural nature of the community and the extensive network of trails in the area. The trail system is popular with dog sled mushers, horseback, snowmachine, motorcycle and ATV riders, hunters, hikers, and others. Two Rivers borders the extensive Chena River State Recreation Area. Two Rivers is especially popular with both recreational and professional