Greenway is a suburb in the Canberra, Australia district of Tuggeranong.

Behind the suburb is the Urambi Hills Nature Reserve and the Murrumbidgee River.

Greenway is built on top of Laidlaw Volcanics as is the west side of Tuggeranong.

This kind of rock was formed from massive explosive volcanic eruptions that blasted a vast cloud of hot dust into the air.

The explosion would have dwarfed the recent Mount St Helens eruption.