Grimpen village is a small hamlet on Dartmoor whose importance lies in its position between the inhabited world and the bleak moor surrounding Baskerville Hall. It is the home base of Dr. James Mortimer and, during Watson’s investigation, a place where local communications can be checked against the suspicions gathering at the Hall.

Setting and Layout

On Holmes’s map, Grimpen appears as a small clump of buildings, with Dr. James Mortimer’s headquarters there. Baskerville Hall lies at the center of the district under discussion, while Lafter Hall, two moorland farmhouses, and the great convict prison at Princetown mark other isolated points. Only a few scattered dwellings fall within five miles of the Hall; between them stretches what Holmes describes as a desolate, lifeless moor. Grimpen is therefore part of a sparse network of settlements rather than a substantial town.

Watson’s approach gives the hamlet a more immediate scale. He walks four miles along the edge of the moor to reach a small gray settlement, where the inn and Dr. James Mortimer’s house stand higher than the other buildings. The village’s visible landmarks are few, but they make it a recognizable local center amid the surrounding open country.

Dr. James Mortimer’s Local Base

The Medical Directory lists Dr. James Mortimer at Grimpen, Dartmoor, Devon, and identifies him as medical officer for the parishes of Grimpen, Thorsley, and High Barrow. The entry also records his earlier service as a house-surgeon at Charing Cross Hospital and his medical and scientific publications. In the novel’s geography, the village is thus not merely a cluster of buildings: it is the professional base from which Mortimer serves several widely separated rural parishes.

Watson’s Visit and the Telegram

Grimpen becomes a point of inquiry when Watson goes there to test whether Barrymore had received a telegram sent to Baskerville Hall. The village postmaster, who is also its grocer, remembers having the message delivered as directed. He identifies his boy, James, as the person who carried it to Barrymore at the Hall. The exchange gives Watson a concrete local witness and a way to check a question that had otherwise rested on conflicting suspicions.

Place in the Wider Narrative

The hamlet’s narrative function grows from its contrast with the terrain around it. It is a small, legible human settlement—an inn, a doctor’s house, and a postmaster’s shop—set within a landscape Holmes maps as scattered dwellings separated by a desolate moor. Its proximity to the moor makes it useful to the investigation without making it the scene of the central danger: Grimpen supplies local knowledge and communication, while the surrounding expanse remains the stage on which the tragedy may be played again.