Address: Rocky Mountain Greenway Trail, 10499 Simms St, Westminster, CO 80005
Westminster Hills Open Space Dog Park in Westminster, Colorado is a large 400-acre area where dogs can run off-leash. There are trails that connect all over the park. In the warmer months, dogs can play in a seasonal canal and creek, but there is not much shade. The trails are well-kept and provide nice mountain views. Dogs have plenty of room to explore, but parking can be busy during peak times.