R-631 · Route File
Guayas and Azuay Provinces · Ecuador
The major E40 mountain crossing from coastal Guayaquil through Cajas National Park to Cuenca.
red · Confirmation required
A closure can remove the direct Guayaquil–Cuenca connection and force a long diversion.
Planning response: Check ECU 911 and INAMHI immediately before the climb and follow the official closure or diversion instructions.
Seasonal windows are planning triggers, not a substitute for current road, weather or land-access reports. Recheck the official sources below before departure.
Route tyre evidence
No reviewed tyre observation is published for this route.
No tyre name is inferred from route popularity, forum mentions or marketing. A report appears only after its tyre, motorcycle, route context, date and named source are reviewed.
Route-specific references
Information tied directly to this road, track or route.
Regional reference desk
Shared road, weather and access services used across Route Files in this region.
ECU 911
official · Servicio Integrado de Seguridad ECU 911
National emergency coordination and the single 9-1-1 emergency number
National risk management
official · Secretaría Nacional de Gestión de Riesgos
National disaster-risk alerts, situation reports and emergency information
Volcanic observatory network
official · Instituto Geofísico EPN
Current monitoring and alert information for Ecuador's active volcanoes
Field Links are reviewed references, not live guarantees. Conditions, closures, services and regulations change. Confirm critical information with the responsible authority before relying on it.