Welcome to DTRG


Tin has been a valuable commodity from the Bronze Age to modern day and historical records relating its working survive from the mid 12th century to the 1970s. In the Middle Ages the wealth it generated enabled churches and substantial farmhouses to be built. Indeed, the very character of Dartmoor has in part been shaped by the tin miner, for almost every hillside or valley shows some evidence of the tinners’ hand, whether a winding water channel, a large excavation, neatly arranged piles of waste or ruined mills and dressing floors.

Project & Archives

Find and read our latest projects as well as the archive of research work done by the DTRG.


Check our DIARY for upcoming events.


Join the DTRG and enjoy the social and academic aspects of DTRG membership.

Brimpts Trails

Self-guided trails that explore the substantial mine workings at Brimpts and a hugely informative display room.


We sell various publications, themed products and copies of our newsletter.

About DTRG

The Group visits many of the ancient, and more modern remains of stream-works, tin-mills, blowing-houses and tin mines.

Field Trips

The DTRG has a full programme of field trips planned, visiting sites of particular interest of research. These trips provide an invaluable way of gaining knowledge and accurate site assessments. Trips are assisted by members with key expertise in certain areas.


When required, DTRG members carry out surveys of tinworking sites to produce detailed maps for research. These maps are an invaluable resource to any study of Dartmoor’s tin.


The DTRG produces interpretations of its work as booklets, formal displays and exhibitions, such as the Brimpts Trails Display Room, partly funded by DNPA.


Not only does the DTRG document and research tinworking sites all over Dartmoor, it helps preserve them too. Areas are cleared so that a site can be studied by all.

Join 100+ members

Friendly, social, history group