In this task, you are given a set of context paragraphs, some supporting facts and an answer of a question. Your task is to generate question for given answer based on set of context paragraphs, supporting facts and an answer.

Context_1 : Harrison Township is a township in Allegheny County in the U.S. state of Pennsylvania. The population was 10,461 at the 2010 census. Pennsylvania Route 28 passes through Harrison Township connecting Kittanning to the northeast and Pittsburgh to the southwest. Allegheny Technologies has extensive steel mill facilities in Harrison Township, including its Allegheny Ludlum Brackenridge Works. Harrison Township is located at the far northeast corner of Allegheny County. Its northern border is the Butler County line and the Allegheny River forms the township's eastern boundary with Westmoreland County. Its northeast corner also touches Armstrong County. Context_2 : Jefferson County is a county located in the Coastal Plain or Gulf Prairie region of Southeast Texas in the United States. The Neches River forms its northeast boundary. As of the 2010 census, the population was 252,273. The 2015 United States Census estimate is 254,308. The county seat of Jefferson County is Beaumont. Context_3 : Logan is a city and county seat of Harrison County, Iowa, United States, along the Boyer River. The population was 1,534 at the 2010 census. Context_4 : Cushing is a town in Knox County, Maine, United States. The population was 1,534 at the 2010 census. A favorite of artists for its unspoiled natural setting, Cushing includes the villages of North Cushing, Cushing, South Cushing, and Pleasant Point. Context_5 : The Oyster River is a tributary of the Saint George River in Knox County, Maine. From its source ( ) in Rockport, the river runs 12.5 mi south and southwest to its confluence with the Saint George. Its lower third forms the border between Warren and Thomaston. Context_6 : The Saint George River is a river in Maine with a watershed of 225 mi2 in a unique and historic area of mountains, sea coast, lakes, tidal streams and inlets. The origin of the Saint George River is the outflow of Saint George Lake ( ) in Liberty. The river follows a winding course 45 mi south to Thomaston, where the river flows into the estuary and runs about 12 mi southwest to Muscongus Bay, forming the border between Cushing and St. George. Context_7 : The Sabak Bernam District (Jawi: ) is a district in Selangor, Malaysia. It covers an area of 1,056 square kilometres, and had a population of 106,158 at the 2010 Census (provisional result). It is situated to the northwest of Selangor town. It is bordered by the state of Perak to the north, the district of Hulu Selangor to the east, the district of Kuala Selangor to the south, and the Straits of Malacca to the west. Bernam River forms its border with Perak. Towns in Sabak Bernam include Sabak, Sungai Besar and Sekinchan. Context_8 : The River Ceiriog (Welsh: "Afon Ceiriog" ) is an 18 mi long river in north east Wales. It is a tributary of the River Dee. It rises at an altitude of around 1800 ft on the south east slopes of Moel Fferna in the Berwyn Mountains, and flows through the Ceiriog Valley in Wrexham County Borough. It flows below Chirk Castle and the town of Chirk, where the Chirk Aqueduct carries the Llangollen Canal over the river. The Ceiriog joins the Dee east of the town. In its lower reaches the river forms the border between Wales and Shropshire in England. Home to a Trout fishing club, the river and its valley were described by British Prime Minister David Lloyd George as "a little bit of heaven on earth". As well as being a home to trout the first grayling to be artificially reared in Wales were released into the river in 2009. Context_9 : Commerce is a city located in southeast Los Angeles County, California, United States. The population was 12,823 at the 2010 census, up from 12,568 at the 2000 census. It is bordered by Vernon on the west, Los Angeles on the northwest, East Los Angeles on the north, Montebello on the east, Downey and Bell Gardens on the south, and Maywood on the southwest. The Los Angeles River forms part of its southwestern boundary, and the Rio Hondo separates it from Downey. Commerce is served by the Long Beach and Santa Ana freeways, as well as the Metrolink commuter rail service at the Commerce station. It is usually referred to as the "City of Commerce" to distinguish it from the common noun. Context_10 : Saint George, an unincorporated community located in the "Georgia Bend" of the St. Mary's River, is the southernmost town in Georgia. It is in Charlton County, south of Folkston. In 2010, the population of the St. George census county division (CCD) was 2,841. Most of this population is in the town of St. George, but the figure also includes rural areas not recognized by the Census Bureau, including communities like Moniac. fact_1 : The river follows a winding course 45 mi south to Thomaston, where the river flows into the estuary and runs about 12 mi southwest to Muscongus Bay, forming the border between Cushing and St. George. fact_2 : The population was 1,534 at the 2010 census. Answer: Cushing
The Saint George River forms a border involving what town with a population of 1,534 at the 2010 census?