The Department of Environment and Primary Industries said the 42ha fire had been burning at Terrible Hollow and Mount Buggery, about 17km east of Mount Buller, since Friday. 

Agency commander Dave Sayce said DEPI and Parks Victoria firefighters were constructing a firebreak on the east and south-eastern sections of the fire. 

Fixed wing aircraft and helicopters were also dropping fire retardant on nearby ridge lines to halt the fire's spread on the western side. 

The Australian Alpine walking track from King Billy Saddle through to Barry Saddle (where Barry Saddle adjoins the Wonnangatta Road) has been closed.

Other tracks that have been closed include Howitt Spur, Queen Spur, King Spur and Macalister Springs.

DEPI staff have been speaking to visitors since Friday and some signage has been put in place but Mr Sayce said visitors would need to keep an eye on the situation. 

"The Alpine National Park is a very popular spot for campers, hikers and other visitors. With the holidays now upon us, we know people will be hitting the road to enjoy some time in the outdoors," he said. 

“However, we’re asking people to check conditions before they travel. Mobile phone coverage is very limited in parts of the park and people should not expect a personal warning."

Travellers through this area can keep informed by:

- checking the CFA website

- listening to ABC local radio, commercial and designated community radio stations or SKY News TV

- call the Victorian Bushfire Information Line  on 1800 240 667 (people who are deaf, hard of hearing or have a speech/communication can contact the VBIL vis the National Relay Service 1800 555 677)

- Download the FireReady App or follow CFA on Twitter or Facebook

- For Road closures check the VicRoads website.