Western NSW residents and visitors to the region can now journey into an ancient volcano in Warrumbungle National Park with the help of a digital geotrail.
They will be able to see first-hand molten lava, fire fountains and mud flows which covered a large part of north-west NSW up to 18 million years ago.
Deputy Premier and Minister for Regional NSW John Barilaro said the Warrumbungle geotrail included "fascinating findings" from a new scientific paper prepared by the Geological Survey of NSW.
He said the trail, which can be downloaded from the GeoTours NSW app, was one of five in a network of digital geotrails allowing visitors to experience spectacular landscapes in regional NSW.
"Our geological scientists have uncovered the shape, size and lava flows of what we can determine was a shield volcano that existed after the dinosaurs became extinct and before humans walked the earth and now people can experience it first-hand," Mr Barilaro said.
"Thousands of visitors come to Warrumbungle each year to enjoy the site's natural beauty and star gazing opportunities and through this new geotrail, we can now explore the remains of the huge volcano that gave rise to the local landscape.
"There are trail options suited to a range of abilities including a self-drive tour, a leisurely stroll around what used to be the volcano's main crater and an adventurous hike around the Grand High Tops Circuit with breathtaking views created by the volcano's unique geology."