Don't skid as you brake. This gouges the trail and increases trail maintenance as well as making the trail bumpier then they need to be. Riding around them undermines these objectives. Learn the skills you need to ride over them. Avoid muddy trails.
Equestrians Take as few stock animals as necessary.
Graze and tie stock away from fresh water sources. Spread manure around to hasten decomposition. Clean up all manure and hay at trail heads. Confine stock without damaging trees or shrubs. A rule of thumb is that for every 1,000 feet in elevation gain, the temperature will drop approximately 4 degrees.