The Tally in the Valley Trail Race is a celebrated annual trail running event held in the scenic Dundas Valley Conservation Area in Hamilton, Ontario. Organized by Happy Trails Racing, this event has become a staple in the Ontario trail running community, drawing participants from across the province and beyond. The race is known for its welcoming atmosphere, strong community spirit, and a wide variety of race formats that cater to both novice and experienced trail runners.

Participants are treated to a unique experience as they traverse the lush Carolinian forest on a well-groomed 7 km loop. The event is sanctioned by Athletics Ontario, ensuring a high standard of organization and safety. With its diverse race offerings, including timed events and an elimination-style challenge, Tally in the Valley provides an inclusive and exciting environment for all levels of runners. The event also features partnerships with brands like La Sportiva, adding extra value through demo opportunities and prizes.

The course consists of a 7 km loop winding through the Dundas Valley Conservation Area's Carolinian forest. Runners encounter primarily groomed double-track trails with rolling hills, offering approximately 130 meters of elevation gain per loop. The terrain is undulating, with no major climbs but continuous elevation changes that accumulate over multiple loops. The surface is mostly packed dirt and gravel, providing a fast yet challenging trail experience. The course direction alternates each year between clockwise and counter-clockwise, giving returning runners a fresh perspective.

- Multiple race formats: 7 km, 21 km, 100-mile, 6/12/24-hour, and elimination event
- Scenic course through Dundas Valley Conservation Area's Carolinian forest
- Rolling hills with approximately 130m elevation gain per loop
- Annual course direction change for variety
- Community-focused, inclusive atmosphere
- Partnerships with leading outdoor brands
- Sanctioned by Athletics Ontario