Just a short stroll from the Einasleigh Hotel is the sparkling Copperfield Gorge. The gorge was formed when the Copperfield River eroded a channel through a sheet of basalt laid down by an ancient lava flow. Basalt is the dark grey rock on both sides of the gorge.� The Copperfield Gorge is a major feature with deep, cool chasms and quiet beaches. Peak your geological interest by counting consecutive lava flows at the Gorge, created from the McBride Volcanic Province.