On the trail how fast should we travel at a walk or trot?

Trail speed is less about hitting a specific number and more about matching the terrain, your horse's fitness level, and the demands of the ride. That said, there are reasonable benchmarks. A relaxed trail walk typically covers four to five miles per hour — enough forward motion to feel purposeful without burning energy unnecessarily. A working trail trot runs eight to ten miles per hour on good footing. Those numbers assume a flat or gently rolling trail with solid ground under you. Adjust down on loose rock, mud, steep grades, or unfamiliar terrain. For most recreational riders doing a two- to four-hour ride, a mix of walking and occasional trotting on good stretches is ideal. Horses are athletes, and even a well-conditioned trail horse shouldn't spend an entire ride at the trot. Walking gives him time to recover, lower his heart rate, and cover the miles without building up the kind of fatigue that leads to stumbles and mistakes. Footing is the variable that overrides everything else. A trail that's fine at a trot in dry conditions can be genuinely dangerous at the same speed after rain. Learn to read the ground ahead and slow down before you reach questionable terrain rather than reacting to it. A horse that stumbles or slips coming downhill at a trot is a horse that can put you on the ground in a hurry. Fitness matters too. A horse coming back from time off should spend the first several rides almost entirely at the walk, building back up to longer trotting sets over weeks — not days. Asking an unfit horse to trot for extended stretches strains his tendons, joints, and cardiovascular system in ways that don't always show up immediately. Condition him honestly, and the trail becomes something both of you can enjoy for the long haul.