The track also passes through exotic and native forest and over farm land - with Tinui Forest Park and farmers Mike and Lesley Hodgins allowing use of their land to make up the three-hour walk.
"Beforehand, the public could only go up to the top of the hill once a year, on Anzac Day," said Mr Emerson. "Now, we've got a track we can use up to six months of the year. People have been very generous."
Mr Emerson said "upwards of 50" members of the Tinui community helped fashion the track - including bulldozing, landscape gardening, building huts, putting in steps and gates and felling trees.
"It's a 3km-long track, so it was one hell of a job," said Mr Emerson.
"But, our community got stuck in, and did a great job without any fuss."
In addition, Wairarapa businesses donated "thousands of dollars" of resources to the project.
Tomlinson and Carruthers did the surveying and mapping of the track, C&M loaned a bulldozer, Goldpine, Mitre 10 Mega, Tower Gates and Turton Farm Supplies donated timber and hardware, and the Walkways Commission did the signage, all at no cost.
"We're a small community - we've got the enthusiasm but not the resources," said Mr Emerson.
"If people had been charging, it would have set us back at least 30 grand."
With it being the first to commemorate Anzac Day, and the terrain of Mt Maunsell being similar to Chunuk Bair, members of the Tinui community have called the area "New Zealand's Gallipoli".
Mr Emerson said Tinui is becoming an increasingly popular Anzac Day destination and with the new track open from November to February, he hopes it will become more popular.
"We think we'll get a lot of visitors."
The track was officially opened by Masterton Mayor Lyn Patterson yesterday afternoon.
A planned walk of the track by Tinui and Whareama schools, and blessing of the cross by Reverend Steve Thomson, had to be postponed because of poor weather conditions.