Tasmania · Attraction
Briseis Hole and Derby Heritage Trail
Walk the mine that built a town
schedule 1 min read / Updated Jun 2026
Briseis Hole, also known as Lake Derby, is the flooded crater of the open-cut Briseis tin mine that once produced more than 120 tonnes of tin per month and employed hundreds of men at the height of the north-east Tasmanian tin rush. A self-guided heritage walk connects the lake, the historic townscape of Main Street, the suspension bridge and the story of the catastrophic 1929 dam disaster that changed Derby forever. The walk is free, starts from the centre of town and can be completed in under an hour.
The Briseis Mine began operating in 1879 after the Krushka brothers discovered a rich lode that became one of the most profitable tin operations in the world. By the 1920s Derby was a thriving settlement of several hundred people, but on 4 April 1929 the Briseis Dam on the Cascade River collapsed after exceptionally heavy rain, sending a wall of water through the town and killing 14 people. The mine never fully recovered, and today the flooded pit, its walls still visible in the lake banks, stands as a quiet monument to that era.
The heritage trail winds past the Derby Schoolhouse Museum, the former bank building now known as Bankhouse Manor, the stone church of St Michael built in 1895, and the timber structures that survive from the mining period. Interpretive signage placed along Main Street and near the suspension bridge explains the geology, the Chinese workers who made up a significant proportion of the mining workforce, and the social history of this remote community. The trail connects naturally with the floating sauna pontoon, the Blue Derby trailhead and the banks of the Ringarooma River, making it easy to build a full day of heritage and nature in Derby.
Scenic views
