During the ride the horse in front of mine kept rearing back and nipping at mine. I told the guide who then requested I keep my horse further away from the one ahead of me. Not having experience I tried to keep a distance but the guide kept stopping for long periods of time to allow the last rider to catch up (who was also having trouble controlling his horse). Sure enough the horse in front of mine nipped, causing mine to jerk back. At the same time, my saddle slipped causing me to fall rapidly to the ground. Injured and stunned I was asked to get back on to finish the ride. When I said I was in too much pain I was asked to leave the trail area to wait for a family member to pick me up. I wasn't asked if I was injured, I wasn't helped off the trail and to the picnic area where I stayed alone to wait. The tour continued without me and they sent a handler for the horse. No one from the stable checked on me sitting alone in the picnic area of Wilderness Hotel (right where I fell off) with an injured back, hip and two large bumps on my head. Please, stay away from this place. I'm recovering but the next person this happens to may not be as fortunate.