Yes, it is actually encouraged. But there are places you must dismount for your safety. The signs on the road will let you know.
Sorry, no. State Park Regulations, which are Virginia law, state: 4VAC5-30-280. Bridle Path Use. No person shall use, ride, or drive a horse or other animal in any park except along a bridle path, to or from a parking area associated with such bridle path, or other designated area. No person shall engage in an activity expressly prohibited by a trail safety sign.
Thanks! Your answer is awaiting moderation.