Haymarket, Virginia is a small town located in Prince William County. The climate in Haymarket is warm and temperate, with hot summers and cool winters. The town is situated in the Bull Run Mountains, and the surrounding area is characterized by rolling hills and forests. The hydrology constituents of the area include the Occoquan River and the Bull Run Watershed, which provide important water sources for the region. Outdoor recreation opportunities in Haymarket include hiking and mountain biking in the nearby parks and forests, as well as fishing and boating in the Occoquan River. The area is also known for its rich history, with several historical sites and museums located in and around Haymarket.