Scotland, around the Outer Hebrides islands, is the setting for Great Northern?.
The island, one of the islands of the Hebrides (GN1), is not named. Later they are leaving for Mallaig tomorrow morning (GN10) to give Sea Bear back to Mac in Glasgow.
The local inhabitants are the Gaelic-speaking Gaels. They find Ian's notebook in the Pichhouse: It's Gaelic. It belongs to one of the natives. A savage Gael .... says Titty (GN4).
There are references to a day in Skye (GN4), getting out of Tarbert .... into Portree (GN7), and to Lewis ref req.
In Swallowdale, on the summit of Kanchenjunga, Titty says that Carlisle ... must be somewhere over there. (SD27).
Jim Brading and Uncle Bob planned to try for Scotland on board Goblin (WD1), until Jim had his accident.
Mrs McGinty, the housekeeper to Frank Farland, was born in Glasgow, but is the widow of an Irishman (CC3).