The Lost Valley Trail Race is a new point-to-point trail running event debuting in 2025 along the scenic Iroquoia Section of the Bruce Trail. Runners can choose between 10 km and 25 km distances, both finishing at the beautiful Dundas Valley Conservation Area. This event fosters a close-knit community atmosphere with limited registration to just 150 participants, offering a grassroots vibe that emphasizes camaraderie and connection with nature.

Both courses feature a net downhill profile with varying elevation gains and losses, marked carefully with the Bruce Trail's white blazes and additional course markings in key areas. Participants should bring their own collapsible cup or bottle as the race is cup-less, and shuttle service from the finish line to the start is provided to ease race-day logistics.

- 25 km: Starts Cityview Park (Burlington); rolling single-track, approx. 600 m elevation gain, 720 m loss; primarily trail with some road
- 10 km: Starts Rock Chapel Conservation Area (Dundas); scenic trail and road mix (~75% trail, 25% road); approx. 185 m elevation gain, 265 m loss
- Both courses are point-to-point with no loops
- Bruce Trail marked with white blazes; additional markings at start/end and select street sections
- Cup-less aid stations; bring your own hydration

- Limited to 150 participants for a grassroots, community atmosphere
- Point-to-point courses ending at Dundas Valley Conservation Area
- Shuttle bus service from finish to start lines
- Support for the Iroquoia Bruce Trail Club with donations per registration
- Cup-less race; bring your own collapsible cup or bottle