About HTA? Grand County Colorado is home to hundreds of miles of trails to explore and discover on foot, bike, ATV, snowmobile, or even by horse. With so many options it can be hard to figure out where to go, when to go, and what the conditions are. That’s where Headwaters Trails Alliance comes in. Headwaters Trails Alliance is a nonprofit organization in 1988 and officially established in 1996 to...