Description
The Mount Ainslie 500 brings the 500 Over 10 format to Canberra with a compact 10km route, 500 metres of vertical gain and three distinct climbs packed into the loop. The route starts and finishes at the Mount Ainslie lookout carpark, so the summit is not just scenery — it is the line.
Origins
Created by Brynn as part of a two-course Canberra contribution to the 500 Over 10 library, the route uses Mount Ainslie as the centrepiece for a ratified course that is home to some of Australia's top trail runners.
Status
Ratified on 16 August 2026 by George with a run coming in at 10.01km, 513m of elevation and 1:09, with a couple of little wrong turns that likely pushed the elevation slightly high — so hopefully the sacred 10km / 500m brief can be achieved with future attempts. For now, all that matters is it's ratified, and should be prioritised over laps around Lake Burley Griffin. George's verdict: "An absolute masterpiece" from Brynn Berg. Great course, lots of single trail, and another 500 Over 10 course officially made.
Reserve Character
Mount Ainslie Nature Reserve is a 637-hectare protected area adjoining Mount Majura Nature Reserve, forming a large area of wooded country overlooking Canberra from the north-east. The summit sits 842 metres above sea level, giving the course a proper hilltop identity overlooking the nation's capital.
Read the ACT Parks reserve guide
Ngunnawal Country
The reserve is on Ngunnawal Country and is recognised by ACT Parks as a significant Aboriginal women’s cultural place. More than 30 known Aboriginal heritage sites are protected within the reserve, including artefact scatters and culturally modified trees. Stay on track, respect the place, and leave what you find.
Place History
Mount Ainslie was named after James Ainslie, Robert Campbell’s overseer, who brought sheep to the Limestone Plains in 1826. The reserve also carries quarry, early settlement and military history — a lot of backstory for a course whose main instruction is still fairly simple: go up, come down, go up again.