The Heihe River is a significant waterway located in northeastern China. It flows through the Heilongjiang province and serves as a natural border between China and Russia. The river is approximately 1,000 kilometers long and is an important source of water for agriculture and local communities in the region. The Heihe River is part of the larger Amur River basin, which is known for its diverse ecosystems. The river supports various wildlife and is crucial for irrigation in the surrounding areas. Its basin also plays a role in regional trade and transportation, connecting different parts of northeastern Asia.