30 Kilometer mountain trail marathon

Unbelievable Sunday.  I made it the first 15K, which was around 100% of the uphill battle!  I think we ran/walked an elevation from around 1800 meters to 3500 meters? then my knees went out and I limped down a side trail for almost 2 hours to the hydro plant/ temporary medical station and rode home in a vehicle.  Thank you everyone!