Boulder County Trails
| Open Space Area | Dog Access | Trail | Mileage |
| Bald Mountain | ON-LEASH | Pines to Peak Loop | 1.5 miles |
| Betasso Preserve | ON-LEASH | Bummers Rock Trail | |
| Canyon Loop Trail | 3.0 miles | ||
| Benjamin Loop Trail | 3.1 miles | ||
| Benjamin Loop Connector Trail | 0.75 miles | ||
| Four Mile Connector Trail | 0.84 miles | ||
| Caribou Ranch | NO DOG | Bluebird Loop | 1.8 miles |
| DeLonde Trail | 1.2 miles | ||
| Carolyn Holmberg Preserve at Rock Creek Farm | ON-LEASH | Cradleboard Trails | 1.3 miles |
| Mary Miller Trail | 1.5 miles | ||
| Access to Broomfield Open Space trails | |||
| Coal Creek/Rock Creek Trails | ON-LEASH | Coal Creek Trail | Extends through many communities |
| Rock Creek Trail | Extends through many communities | ||
| Coalton Trailhead | ON-LEASH | Coalton Trail | 2.5 miles |
| M... Trail | 2.5 miles | ||
| M... S... Trail | 2.7 miles | ||
| Hall Ranch | NO DOG | Bitterbrush Trail | 3.7 miles |
| Nighthawk Trail | 4.7 miles | ||
| Buttonrock Trail | 2.0 miles | ||
| Nelson Loop | 2.2 miles | ||
| Antelope Trail | 1.0 miles | ||
| Heil Valley Ranch | NO DOG | Picture Rock Trail | 5.5 miles |
| Wild Turkey Trail | 2.9 miles | ||
| Wapiti Trail | 2.5 miles | ||
| Ponderosa Loop | 2.6 miles | ||
| Lichen Loop | 1.3 miles | ||
| Lagerman Reservoir | ON-LEASH | Lagerman Reservoir Trail | |
| Legion Park | ON-LEASH | Legion Park Trail | 0.9 miles |
| Mud Lake | ON-LEASH | Kinnikinnick Loop | 1.1 miles |
| Tungsten Loop | 0.8 miles | ||
| Caribou Ranch Link Trail | 0.5 miles | ||
| Niwot Loop Trail | ON-LEASH | Niwot Loop Trail | adjoins Niwot area trails |
| Access to Niwot area trails | |||
| Pella Crossing | ON-LEASH | Braly Trails | encircle ponds & a lake |
| Marlatt Trails | encircle ponds | ||
| Rabbit Mountain | ON-LEASH | Eagle Wind Trail | 2.6 mile loop |
| Indian Mesa Trail | 1.6 miles | ||
| Little Thompson Trail | 1.0 miles | ||
| Reynolds Ranch | OFF-LEASH | ||
| Twin Lakes | ON-LEASH | Eastern Lake, OFF-LEASH Western Lake | Twin Lakes Regional Trail |
| Walden Ponds Wildlife Habitat | ON-LEASH | Trails around ponds and wetlands | |
| Walker Ranch | ON-LEASH | Walker Ranch Loop | 7.5 miles |
| Meyers Homestead Trail | 2.6 miles | ||
| Walker Ranch Link | 1.1 miles | ||
© 2012 Friends Interested in Dogs and Open Space site / bluetrope