Trekking Travel
Sports, Equestrian, Vacations and Touring, South America - Trekking Travel. Offers horse back riding and trekking in the Los Andes Mountain Range and mountaineering expeditions to Aconcagua.
http://trekking-travel.com.ar
Ride Andes home page
Sports, Equestrian, Vacations and Touring, South America - Ride Andes. Offers highland hacienda and adventure riding tours in Ecuador, Argentina, Uruguay, & Chile.
https://www.rideandes.com/