Big climbs / descents
I recently drove across the Barrington Tops from Gloucester to Scone. On the Scone side is a magnificent bit of farm road dropping over 800m down to Moonan Flat in just over 11 kms. Had a look at Strava and the climb is in there as a segment with a 7% average gradient and a ridiculous KOM time (from my perspective anyway). There is an even longer version continuing on up to Polblue picnic area in the NP which takes the distance up to 21 km and elevation up to 1060m at an average of 5%. The NP section is a fairly rocky road base where a smooth line might be hard to find.
This begs the question as to whether there are any similar length climbs on dirt closer to Sydney. Anybody got any favourites??
I know about Glenbrook to Woodford / Wenty. Plenty of elevation, but its not as consistently up hill.....