Built in 1984 by the NZFS for $2903, it was the last biv built by them in Westland. It replaces an earlier B55 model, see 'Toaroha Saddle Bivvy (old)'. The current biv is lined with tar paper, rests on wooden blocks rather than piles, & is held in place by wire tie-downs. It was repainted in March, 2013. DOC recently replaced the tie-downs which are fastened to newly installed wall plates. Water is provided from a couple of small tarns on the Mungo side of the ridge. Edit Hut