Trail development around Hailey and Bellevue has been limited by two factors: topography and private property.  The steep canyon walls are formed by the underlying sedimentary rocks of the Milligen and Wood River Formations. Where the landscape is not as steep, private ownership often prevents construction of public trail systems.

Croy Canyon contains a large amount of public property managed by the Bureau of Land Management (BLM).  Combine the rolling landscape created by the underlying Challis Volcanics with reasonable access across private land and the potential for developing new trails exists.  This potential was realized with the construction of more than fifteen-miles of short-loop, single-track trail on the north side of the drainage in 2009.

Though the new trails in the Croy Canyon network are open to all user groups (with some limitations), they were built with two-wheeled users in mind. The meandering routes and large-radius, bermed switchbacks make riding these trails both challenging and fun.  It will take many laps to master the timing necessary to execute a perfect run.

 Trailheads: There are five trailheads out Croy Canyon.  They are listed in order of distance from the downtown Hailey stoplight.  The Carbonate trailhead (.4 mi) at the base of Carbonate Mountain has a toilet, dog waste bags, and space for many cars.  The Lambs Gulch trailhead (2.7 mi) is located one mile out Democrat Gulch with limited parking and no services.   The Rodeo Drive site (3.3 mi) has limited parking at the end of this residential turn-around.  The Croy Creek trailhead (3.7 mi) has nearly unlimited parking, a pit toilet, space for numerous trailers, and is a destination in and of itself.  The Hailey Community Bike Park is located next to the main parking lot.  While the area has long served as a heavy-use motorized zone, many of the old trails have been closed for rehabilitation.  An entirely new system of multi-use, single-track trails is planned to augment the existing motocross track.  Weekly short-track mountain bike races are held here every summer, hosted by Sun Valley Road and Dirt.  The Bullion Gulch trailhead (5.7 mi) offers a small parking area at the start of the Bull Dog trail 1.6 miles up Bullion Gulch.

For more detailed descriptions, topo maps, and information on the history, geology, and wildflowers of the Wood River Valley pick up a copy of Exploring Sun Valley online or find it at one of several local shops.