Northwest of Denver and Golden, the White Ranch Park in the Jefferson County Open Space has miles of mountain bike trails to explore. The main access trail from the lower parking area is the Belcher Hill Trail which is a 4.4 mile loose rock doubletrack that climbs 1,740 feet. It provides central access to numerous side singletracks, most of which are quite difficult with plenty of large water-bars.
To reach the mountain biking trails at White Ranch Open Space Park from Golden, head north on US93 for 1.7 miles to West 56th Avenue. Turn left heading west on West 56th Avenue. At the end, veer right into signed parking area.
Here is a summary of the multi-purpose mountain bike trails at White Ranch Open Space Park:
Belcher Hill Trail (4.4 mi +1740ft / -440ft) Long, rocky & very steep trail. Great views.
Rawhide Trail (4.5 mi +1380ft /-1386ft) Flat trail that passes through forest and grassy plains.
Wranglers Run (0.5 mi +7ft/ -1581ft) Short trail, bisecting Rawhide Trail.
Waterhole Trail (0.6 mi +105ft / -39ft) Shortcut between Rawhide Trail, access to Sourdough Springs equestrian camp.
Longhorn Trail (3 mi +854ft / -1388ft) Steep, strenuous trail. Exposed with little shade.
Maverick Trail Trail (0.9 mi +138ft / -397ft) Forested trail with great views of the city.
Mustang Trail Trail (2.2 mi +475ft / -1404ft) Steep, challenging trail. First half of trail travels down and Longhorn a forested gulley and last trek is across flat plains.
Round-Up Loop Trail (0.3 mi +163ft / -68ft) Short trail. Bypasses a short section of Belcher Hill.
Shorthorn Trail (1.1 mi +402ft / -333ft) Forested, rocky trail with great views of the city.
Sawmill Trail (1.6 mi +376ft / -356ft) Forested, with meadows, leads to Sawmill campgrounds.
Whippletree Trail (0.6 mi +125ft/-239ft) A gentle, rolling trail with views of hogback and city.
Overall, White Ranch Open Space Park is the 99th most popular mountain bike trail of all 175 mountain biking rides in Colorado.