Mount Gambier will host the annual Tower Trail Run on Sunday, with events ranging from 5km to a 56km ultra marathon.

The event will centre on the Crater Lakes area, with the 5km run to start at 9.15am, 10km at 9.30am, 21km at 8am and the 56km at 7am.

A compulsory pre-run briefing will be held five minutes prior to each distance event.

Running bibs will be ready for collection at the Hay Drive event hub any time after 6.15am on the day.