Keshan City is located in the northeastern part of China, within Heilongjiang Province. It is known for its rich agricultural land and is often referred to as a key area for farming in the region. The city has a population of around 200,000 people and features a mix of urban and rural landscapes. The city is also famous for its historical significance, particularly in the context of the Keshan Disease, a type of heart disease linked to selenium deficiency. Keshan City has made efforts to improve local health and agriculture, promoting the importance of selenium-rich foods to prevent this condition.