Located in northeastern Colorado, Brush experiences a semi-arid climate with hot summers and cold winters. The city is situated on the South Platte River and relies on groundwater for its water supply. Hydrologic constituents such as nitrates and total dissolved solids are monitored to ensure the safety of the water supply. Outdoor recreation opportunities in Brush include golfing at the nearby course, fishing and boating on the South Platte River, hiking and camping in nearby state parks, and exploring the Pawnee National Grassland. The city also hosts several annual events, including the Brush Rodeo and the Brush Oktoberfest.