Start at Bickley reservoir carpark. Short section on bitumen path and road, then 40m climb onto Shoofly Hill trail. Undulating, mainly downhill on wide single track for about one km, few muddy sections, including some sucker mud (went in about 4 inches, just about stopped). Brings you back onto dam access road, bluemetal, for about 1km to bridge.
Start of climb. 1st part is 1.8km along Dam access road (part bitumen, part packed bluemetal) to old dam wall. Only hit Granny at old dam wall for about 10 metres. Flat, onto walk trails at Dam picnic area (some dirt, some concrete). 400 metres to top of new dam wall, last 200 metres uphill, reasonably steep but easy going on bitumen. Shoulder bike, carry up three flights of stairs. Take walk trail, undulating, narrow, but fairly flat into short climb to very top of hill. No more up-hill from here.
Left into a section of single track from the road down to the Mason-Bird trail. Tight and twisty downhill, between rocks. Technical, big fun! Then left into the Mason-Bird trail. This varies from wide and flat to steep and rocky. Really need to pick your line, otherwise suffer a fairly untidy face plant on to sticky-up rocks. Take loose rocky sections either at a crawl or 25 km/h - safer at speed if you have DS – to the bridge. Return on dam access road and Shoofly Hill bypass. Instead of following bitumen back to carpark, stay up-hill and take the single track. At gully, take right hand hardpack trail if cautious, straight ahead boggy red clay if not (both are 45 degrees)soft route easy 6" deep, likely to bog halfway down. Not an issue in summer!Through the creek, (caution: can be up to 12" deep!) berm right across road onto path back to carpark. Around 60-90 minutes of ride time. Kangaroos, Bandicoots, Tawny Frogmouths and Parrots in abundance, and views that leave you in no doubt as to why you ride, even if the climb made you wonder...
Off the Tonkin Hwy at Kelvin Rd, turn towards the scarp. Right into White St, left into Hardinge Rd, left into the carpark at the lower reservoir. Ride out up Hardinge Rd to the end and pick up the trail up Shoofly Hill on the right.