Welcome to Volcán Reventador
The volcano is within the eastern boundaries of Reserva Ecológica Cayambe-Coca, a rarely visited reserve that rises to over 5500m and a transition zone between Andes and Oriente. There are no signs or entrance stations here and the guard station is 20km away in the town of El Chaco, half-way between Baeza and Hostería Reventador (which can advise on hiking possibilities).
Volcano-watchers should not despair, however. You can appreciate Volcán Reventador by signing up on a hardcore adventure tour in the privately owned cloud forest reserve of Reserva Alto Coca, sitting between 1500 and 2000m on the valley's other side.