Nattai National Park – Bonnum Pic

A party of 18 club members assembled at Mittagong on Sunday morning 29 July to walk the Bonnum Pic track in the Nattai National Park. The Pic gained its striking name from the French engineer and explorer Francis Barrallier in 1802. For the most intrepid the goal would have been Bonnum Pic itself, a narrow promontory of broken rock, bound on three sides by sheer 150m cliffs with breathtaking views north the distant Blue Mountains and the Burragorang Valley.

We opted for a more relaxing itinerary than the full 16km out-and-back to the Pic, and after a 25km car pool drive along the Wombeyan Caves road and the Wanganderry farm access road, we had a pleasant 1.5 hour walk through grazing land, bush and heathland out to the wonderful Wanganderry Walls. The mallee on the rocky areas was the Narrow-leaved Mallee Ash Eucalyptus apiculata  which occurs at West Berrima, Wanganderry Tableland , Hilltop and Mt Keira. The hakea was Hakea constablei which occurs on Wanganderry Tableland and the Upper Blue Mountains.

We then spent a further hour navigating along the cliff line across friendly, undulating rock domes in brilliant sunshine, mild temperatures, but blustery winds, to our lunch spot, before retracing our steps to the cars. Thanks to Adrian Buzo for leading the walk and writing up the report.

Our  expert fauna guide Deb Andrew was able to spot and record some fauna sightings for the Atlas of NSW wildlife. A Lesueur’s Velvet Gecko (Oedura lesueurii), favoured food of the endangered Broad-headed Snake. She explained that moving the rocks (for cairn building ) was destroying gecko and snake habitat. We saw the v-shaped incisions on the trunks of Grey Gum (Eucalyptus punctata) which are the feeding incisions made by the endangered Yellow-bellied Glider Petaurus austalis (feeds on sap nectar and insects),. We also saw an endangered Scarlet Robin, heard an endangered Gang Gang Cockatoo and heard a Red-browed Treecreeper. There were no previous records for those species in those locations in the Atlas.


National Parks Document on Vegetation

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