
Right, so does the friend come up from Monksilver? If so, she would probably normally go to Elworthy Cross and would have to go up Elworthy Hill on the B3224 to Raleighs Cross.
Usually the hill can be difficult in snowy conditions, I haven't heard anything about that particular part of the road today, however, the Brendons are generally, at their highest point, a bit worse than us!! Most of Exmoor is under a blanket of heavy snow.
I would lay a bet if your friend is needing to get to horses she will have made it by hook or by crook! :) Just seen the other bit of your post- if she didn't, so long as they have some hay, they will be fine.