The distinctive peaks of Mount Barney, Mt Maroon, Mt May, Mt Lindesay, Mt Ernest, Mt Ballow and Mt Clunie make up Mount Barney National Park. These rugged peaks are the remains of the ancient Focal Peak Shield Volcano which erupted 24 million years ago. Mount Barney is the second highest peak in south-east Queensland.

The park has extremely varied vegetation with open forests around the foothills of the peaks, subtropical rainforest above 600m, montane heath shrublands towards the summit of the peaks, cool temperate rainforest on the summit of Mt Ballow, and mallee eucalypt shrublands on Mt Maroon. Many rare and unusual plant species grow in the park including the endangered Maroon wattle Acacia saxicola, the rare mallee ash Eucalyptus codonocarpa, Mount Barney bush pea Pultanaea whiteana and Eucalyptus michaeliana.
Most of Mount Barney National Park is in the Gondwana Rainforests of Australia World Heritage Area.
Walk-in bush camping is permitted at several sites in the park. There are no facilities at any of these sites.

To reduce environmental impacts, there are limits on the number of people who may camp at each campsite. These limits may change as a result of ongoing research and monitoring. Campsites may be closed from time to time to allow for regeneration or during periods of high fire danger.

Closest Weather Station

Temperature	Feels Like	Rel. Humidity	Dew Point	Pressure	Rainfall	Wind Direction	Wind Speed	Gusts
19.0°C	20.3°C	73%	14.1°C	1014.8hPa	0.0mm	CALM	0km/h 0knots	0km/h 0knots

Closest Climatic Station

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mean Max. °C	30.2	29.8	28.0	25.3	21.0	18.7	18.1	19.9	23.7	25.8	27.4	29.4
Mean Min. °C	16.9	17.1	15.0	11.2	6.8	4.6	2.8	3.0	7.1	10.5	13.4	15.7
Mean Rain mm	85.2	59.5	54.7	25.4	39.8	34.0	28.5	22.1	32.1	74.8	94.2	103.4