Dunham gives it a passing mention.
The dumps (of Barbara Level) give the impression that neither this vein, not its SSE branch known as Kining Vein, entered from Kining Level above Gunnerside village, were very well mineralised.
I think some of the Swaledale locals have a dig on in there.
Unfortunately they are not an 'online' group so getting in touch with them is difficult.
I've added it to the database.