Before You Go
Research the trail you're planning to run on. Carry water, a cell phone, and a map. Be prepared for current—and changing—weather conditions, says Nancy Hobbs, president of the American Trail Runners Association.Leave a Trail
Always let someone know where you're going and your estimated return time. If possible, check in at a ranger station or put a note on your car specifying your whereabouts.More: Hit the Trails to Stay Injury Free
Right of Way
Trail courtesy signs indicate that hikers yield to horses, and mountain bikers yield to hikers and horses. As a trail runner, consider yourself a hiker. Runners heading uphill generally have the right of way over runners heading downhill.More: Exercises to Increase Your Running Speed
Stand Out
During hunting season, wear an orange cap or vest. Trail runners and deer can have striking similarities through thick brush.Downed Log
Climbing over it is the safest approach. But if your personality craves a little risk, hurdle it (as long as you can see clear trail on the other side), or step up and jump down.More: The Ins and Outs of Trail Running
Pit Stop
Walk to an inconspicuous spot at least 200 feet (about 70 adult steps) off-trail and away from water sources.Descents
Stay upright with just enough lean to maintain forward motion without losing control. "Stepping on rocks can be jarring on descents, so opt for dirt," Fish says. The exception: When the trail is steep, rocks can serve as steps, helping you maintain balance and control.More: Your Ulitmate Guide to Trail Running