weatherworn, weather-beaten, worn.
Though it is not stated what was the condition of these peats, it is probable they had not been weathered.
Coming to undertake it, we found the climb- except for a slide of weathered
rock- no great task, and we accomplished it in half an hour, with breath to spare and no mishap to horses.
Anyway, as you seem to have weathered
the storm, I want my reward.