Trail Running in Boise: Check the Lower Hulls Gulch Date Rule
What is a good first Boise trail run? Start around Camel's Back and Hulls Gulch, but check the Ridge to Rivers map before choosing a loop. The popular Kestrel–Crestline–Lower Hulls Gulch route has a crucial rule: Lower Hulls Gulch is closed to hikers and runners on odd-numbered dates. On even-numbered dates, hikers may use it in either direction.
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Choose the route by today's date
Ridge to Rivers, the local trail manager, describes Kestrel Trail #39A as a moderate climb, Crestline #28 as a flatter traverse, and Lower Hulls Gulch #29 as a rocky, technical descent with blind corners. It calls the connection a good taste of the Boise Foothills. The same page sets an odd/even separation rule for Lower Hulls Gulch: odd dates are for downhill bicycles only; even dates allow hikers and equestrians both ways plus uphill bicycles. A route that works yesterday may be off-limits to you today.
If today's rule or your experience makes that loop a poor fit, use the interactive map to select another open trail. Camel's Back Reserve has pedestrian-only paths, but its hill and staircase are steep; the manager asks users to stay on trail to avoid erosion. Choose an easy effort on the climb and save enough control for the descent.
Conditions matter as much as distance
The foothills can be vulnerable when wet. Ridge to Rivers asks users to check daily trail conditions and avoid damaging muddy routes. Current notices may also flag other closures or hazards. Read the conditions report on the morning of your run, then carry an alternate route in mind. Do not skirt mud into sensitive vegetation.
| If... | Do this | Why |
|---|---|---|
| It is an even-numbered date and trails are open | Consider the mapped Kestrel–Crestline–Lower Hulls route | Hikers are allowed on Lower Hulls Gulch that day |
| It is an odd-numbered date | Choose another open route on the interactive map | Lower Hulls Gulch excludes hikers that day |
| Trails are wet or closed | Use a durable, permitted alternative | Protect the tread and respect the manager's notice |
Before you head out
- Check today's date, the map and the condition report.
- Mark your trailhead and every junction. The area has access points at 9th Street, the Grove and Hulls Gulch.
- Carry water and sun protection for the forecast and time you plan to run.
- Slow on rocky descents and blind bends; share the trail deliberately.
- Follow posted signs if they differ from older maps.
Local-source note: Ridge to Rivers is the authority on current trail rules and access. Verify them before every run.
Image: Hulls Gulch in the Boise Foothills by BLM Idaho, listed as U.S. public domain. The image does not replace the current trail map or imply agency endorsement.