Boulder Open Space and Mountain Parks

Colorado

The collection of natural areas in the foothills just west of Boulder, CO are collectively-known and managed as the Boulder Open Space and Mountain Parks. With over 150 miles of trails across 45,000 acres, this extensive recreation area has a long history of preservation and protection going back to the late 1800s.

When Open?	Area Acres	Operated By
Year round; closed 11PM - 5AM	29,264 acres	City of Boulder Open Space and Mountain Parks

Dogs Allowed?	Miles of Trail	Max/Min Elev (ft)
Most areas, including all trailheads, require leashed dogs - some off leash areas that require voice and sight tag. Dogs prohibited on some trails.	141	5,120ft - 8,540ft

Boulder Open Space and Mountain Parks Trail and Map Finder

Area Hiking Trails:
1 - 1st-2nd Flatiron Trail
2 - 6th Street Connector Trail
3 - 6th Street Connector West Trail
4 - 7th Street Connector Trail
5 - 8th Street Connector Trail

Area Hiking Trails:
1 - 1st-2nd Flatiron Trail
2 - 6th Street Connector Trail
3 - 6th Street Connector West Trail
4 - 7th Street Connector Trail
5 - 8th Street Connector Trail
6 - Amphitheater Express Trail
7 - Amphitheater Trail
8 - Anemone Trail
9 - Artist Point Trail
10 - Baseline Connector Trail
11 - Baseline Trail
12 - Baseline-Gregory Connector Trail
13 - Bear Canyon Access Trail
14 - Bear Canyon Trail
15 - Bear Peak Trail
16 - Bear Peak West Ridge Trail
17 - Beech Trail
18 - Bluebell Mesa Trail
19 - Bluebell Road Trail
20 - Bluebell Spur Trail
21 - Bluebell-Baird Trail
22 - Bluestem Connector Trail
23 - Boulder Canyon Trail
24 - Boy Scout Trail
25 - Chapman Drive Trail
26 - Chautauqua Trail
27 - Coal Seam Trail
28 - Coalton Trail
29 - Cobalt Trail
30 - Community Ditch Trail
31 - Cowdrey Draw Trail
32 - Cragmoor Connector Trail
33 - Crown Rock Picnic Loop Trail
34 - Crown Rock Trail
35 - Dakota Ridge Connector Trail 1
36 - Dakota Ridge Connector Trail 2
37 - Dakota Ridge Trail
38 - Degge Trail
39 - Doudy Draw Trail
40 - Dry Creek Trail
41 - E M Greenman Trail
42 - Eagle Trail
43 - Eagle Trail - Hiking Only
44 - Eagle Trail - Multi-Use
45 - East Ridge Trail
46 - Eldorado Canyon Trail
47 - Enchanted - McClintock Spur Trail
48 - Enchanted Mesa Trail
49 - Enchanted-Kohler Spur Trail
50 - Fern Canyon Trail
51 - Fern Meadow - Cragmoor Trail
52 - Flagstaff Loop Trail
53 - Flagstaff Trail
54 - Flatirons Loop Trail
55 - Flatirons Vista North Trail
56 - Flatirons Vista South Trail
57 - Foothills North Trail
58 - Foothills South Trail
59 - Four PInes Spur Trail
60 - Four Pines - 15th Street Access Trail
61 - Four Pines - Sierra Drive Access Trail
62 - Four Pines Trail
63 - Fowler Trail - Hiking Only
64 - Fowler Trail Multi-Use
65 - Goat Trail
66 - Goat Trail - Forest Avenue Access Trail
67 - Goshawk Ridge Trail
68 - Green Bear Trail
69 - Green Mountain West Ridge Trail
70 - Greenbelt Connector Trail
71 - Greenbelt Plateau Spur Trail
72 - Greenbelt Plateau Trail
73 - Greenbriar Connector Trail
74 - Gregory Canyon Trail
75 - Halfway House Spur Trail
76 - Halfway House Trail
77 - Hardscrabble Connector Trail
78 - Hidden Valley Trail
79 - High Plains Trail
80 - Hogback Ridge Trail
81 - Holly Berry Trail
82 - Homestead Spur Trail
83 - Homestead Trail
84 - Joder Ranch Trail
85 - Kohler Mesa Trail
86 - Kohler Spur Trail
87 - Left Hand Trail
88 - Lehigh Connector - North Trail
89 - Lehigh Connector - South Trail
90 - Lions Lair Lower Trail
91 - Lions Lair Spur Trail
92 - Lions Lair Trail
93 - Long Canyon Trail
94 - Lower Big Bluestem Trail
95 - Mallory Cave Trail
96 - Marshall Mesa Trail
97 - Marshall Valley Trail
98 - Mays Point Trail
99 - McClintock Lower Access Trail
100 - McClintock Lower Trail
101 - McClintock Upper Trail
102 - Meadow Trail
103 - Mesa Connector Trail
104 - Mesa Reservoir Trail
105 - Mesa Spur Trail
106 - Mesa Trail
107 - Mickey Mouse Wall Access Trail
108 - Mount Sanitas Trail
109 - NCAR - Bear Canyon Trail
110 - NCAR - Bear Connector Trail
111 - NCAR - Skunk Canyon Trail
112 - NCAR - Table Mesa Trail
113 - NCAR - Table Mesa-Bear Trail
114 - NCAR Access Trail
115 - NCAR Cutoff Trail
116 - NCAR Interperative Trail
117 - NCAR Trail
118 - NCAR Water Tank Road Trail
119 - NIST Service Road Trail
120 - North Rim Trail
121 - Northern Quarry Trail
122 - Old Kiln Spur Trail
123 - Old Kiln Trail
124 - Old Mill Trail
125 - Panorama Trail
126 - Plains Overlook Trail
127 - Prairie Vista Trail
128 - Range View Trail
129 - Ranger Trail
130 - Rattlesnake Gulch Trail
131 - Red Rocks Spur 1 Trail
132 - Red Rocks Spur 10 Trail
133 - Red Rocks Spur 11 Trail
134 - Red Rocks Spur 12 Trail
135 - Red Rocks Spur 13 Trail
136 - Red Rocks Spur 2 Trail
137 - Red Rocks Spur 3 Trail
138 - Red Rocks Spur 4 Trail
139 - Red Rocks Spur 5 Trail
140 - Red Rocks Spur 6 Trail
141 - Red Rocks Spur 7 Trail
142 - Red Rocks Spur 8 Trail
143 - Red Rocks Spur 9 Trail
144 - Red Rocks Trail
145 - Royal Arch Trail
146 - Sacred Cliffs Climbing Access Trail
147 - Saddle Rock Trail
148 - Sage Trail
149 - Sage Trail North
150 - Sanitas Connector Trail
151 - Sanitas Spur 1 Trail
152 - Sanitas Spur 2 Trail
153 - Sanitas Valley Trail
154 - Sensory Trail
155 - Shadow Canyon North Trail
156 - Shadow Canyon South Spur Trail
157 - Shadow Canyon South Trail
158 - Shadow Canyon Trail
159 - Shanahan - Mesa Trail
160 - Shanahan - North Fork Trail
161 - Shanahan - South Fork Trail
162 - Shanahan Connector Trail
163 - Ski Jump Trail
164 - Skunk Canyon Spur Trail
165 - Skunk Canyon Trail
166 - Skunk Connector Trail
167 - South Boulder Creek Access Trail
168 - South Boulder Creek Trail
169 - South Boulder Creek Trail - Multi-Use
170 - South Boulder Creek West Trail
171 - South Boulder Peak Trail
172 - South Mesa Spur Trail
173 - Spring Brook Loop North Trail
174 - Spring Brook Loop South Trail
175 - Sunshine Canyon Trail
176 - Tenderfoot Overlook Trail
177 - Tenderfoot Trail
178 - Towhee Trail
179 - Upper Big Bluestem Trail
180 - Ute Spur Trail
181 - Ute Trail
182 - Viewpoint Cutoff Trail
183 - Viewpoint Trail
184 - Viewpoint Trail - University Avenue Access Trail
185 - Woods Quarry Trail

Area Trailheads:
1 - Artist Point Trail
2 - Bear Canyon Access Trail
3 - Boulder Canyon Trail
4 - Boulder Canyon Trail
5 - Boulder Trailhead 1

Area Trailheads:
1 - Artist Point Trail
2 - Bear Canyon Access Trail
3 - Boulder Canyon Trail
4 - Boulder Canyon Trail
5 - Boulder Trailhead 1
6 - Boulder Trailhead 2
7 - Boy Scout Trail
8 - Chapman Drive Trail
9 - Chatauqua Trailhead
10 - Coalton Trail
11 - Cobalt Trail
12 - Cowdrey Draw Trail
13 - Dakota Ridge Trail
14 - Doudy Draw Trail
15 - Dry Creek Trail
16 - Dry Creek Trail
17 - Eagle Trail - Multi-Use
18 - Eldorado Canyon Trail
19 - Fern Meadow - Cragmoor Trail
20 - Flagstaff Trail
21 - Foothills North Trail
22 - Foothills North Trail
23 - Foothills South Trail
24 - Foothills South Trail
25 - Fowler Trail Multi-Use
26 - Goat Trail - Forest Avenue Access Trail
27 - Green Mountain West Ridge Trail
28 - Greenbelt Plateau Spur Trail
29 - Greenbriar Connector Trail
30 - Hardscrabble Connector Trail
31 - Joder Ranch Trailhead Lower
32 - Joder Ranch Trailhead Upper
33 - Lehigh Connector - North Trail
34 - Lehigh Connector - South Trail
35 - Lions Lair Spur Trailhead
36 - Long Canyon Trail
37 - Lower Big Bluestem Trail
38 - Marshall Valley Trail
39 - McClintock Lower Trail
40 - Mickey Mouse Wall Access Trail
41 - NCAR - Skunk Canyon Trail
42 - NCAR - Table Mesa Trail
43 - NIST Service Road Trail
44 - Old Kiln Spur Trail
45 - Rattlesnake Gulch Trail
46 - Red Rocks Trailhead 1
47 - Sensory Trail
48 - South Boulder Creek Trail
49 - South Boulder Creek Trail
50 - South Boulder Creek Trail - Multi-Use
51 - South Boulder Creek Trail - Multi-Use
52 - South Boulder Creek West Trail
53 - South Mesa Trailhead
54 - Trailhead
55 - Trailhead
56 - Viewpoint Trail - University Avenue Access Trail