…very long shot indeed !
My 12 year old son lost his phone whilst walking there today, he thinks it fell out his pocket just below the reservoir by a wooden door with a triangle lintel/ brick arch near grassy banks.

Typical almost teenager! Wouldn’t have happened if I’d been with him !

It’s a Motorola in a black/blue case.

I went back up and left a mini poster on the gate as you leave the road.

Lol if it’s found it’ll be iced up and rained on !! Can’t track it as no service up there.

Didn’t loose himself or his food !

Location History/Google Maps Timeline will have it tracked until it lost service.

Might give you a starting point

Stand on the Weir in Kendal with a net

Location history etc no good as reception is lost pretty much as you leave Staveley.
He definitely had it at the reservoir as he said he was taking pictures.

I’ll get a net 😂

On the plus side he was out for 5 hours having fun.

Bump !

I doubt it would work now but who knows !