Tavistock Canal Northern Tunnel Portal, Tavistock, Dartmoor National Park

Tavistock Canal Northern Tunnel Portal, Tavistock, Dartmoor National Park

If you zoom in on the 'Satellite' setting of the accompanying Google map, you'll be at the entrance of a tunnel that passes under a patchwork of fields that covers Morwell Down. This entrance is called the Tavistock Canal Northern Tunnel Portal. Move the map south west and you'll come to Morwellham where you'll find the exit of that tunnel. This exit is called the Tavistock Canal Southern Tunnel Portal.

The canal tunnel is '7,920 feet (2,414 m) long, 8' (2.4 m) high, 6' (1.8m) wide'. (Source: information board at Tavistock Canal Southern Tunnel Portal.)