![pic a=John Ward from The Nepean District Archeological Group [L] & John McPhee who has pictures of an old Knapsack signal cabin. pix bc=same with model of Zig Zag.pic d=Knapsack signal cabin.pic e=Rail Bridge. The old cabin is located on Zig Zag Bridge walkway.](/images/transform/v1/crop/frm/silverstone-feed-data/68b46ab3-856f-45e3-9a00-43754d0d11ab.jpg/r0_0_3116_2260_w576_h298_fmax.webp "pic a=John Ward from The Nepean District Archeological Group [L] & John McPhee who has pictures of an old Knapsack signal cabin. pix bc=same with model of Zig Zag.pic d=Knapsack signal cabin.pic e=Rail Bridge. The old cabin is located on Zig Zag Bridge walkway.")
![pic a=John Ward from The Nepean District Archeological Group [L] & John McPhee who has pictures of an old Knapsack signal cabin. pix bc=same with model of Zig Zag.pic d=Knapsack signal cabin.pic e=Rail Bridge. The old cabin is located on Zig Zag Bridge walkway.](/images/transform/v1/crop/frm/silverstone-feed-data/cf6b0087-2953-4d16-a4ac-31814a94e556.jpg/r0_0_2592_3402_w576_h298_fmax.webp "pic a=John Ward from The Nepean District Archeological Group [L] & John McPhee who has pictures of an old Knapsack signal cabin. pix bc=same with model of Zig Zag.pic d=Knapsack signal cabin.pic e=Rail Bridge. The old cabin is located on Zig Zag Bridge walkway.")
![pic a=John Ward from The Nepean District Archeological Group [L] & John McPhee who has pictures of an old Knapsack signal cabin. pix bc=same with model of Zig Zag.pic d=Knapsack signal cabin.pic e=Rail Bridge. The old cabin is located on Zig Zag Bridge walkway.](/images/transform/v1/crop/frm/silverstone-feed-data/a6fe4e00-4374-4484-a66b-7e48c9071b61.jpg/r0_0_2536_3068_w576_h298_fmax.webp "pic a=John Ward from The Nepean District Archeological Group [L] & John McPhee who has pictures of an old Knapsack signal cabin. pix bc=same with model of Zig Zag.pic d=Knapsack signal cabin.pic e=Rail Bridge. The old cabin is located on Zig Zag Bridge walkway.")
Very little evidence remains of the first railway line into the Blue Mountains.
Only sections of the old track, which is now covered in lantana and bush, and old rotting buildings exist of the once grand Zig Zag Railway at Lapstone.
However, Zig Zag Railway collector John McPhee of Castlereagh has uncovered photos of the railway track, dating between 1909 and 1913.
One photo is of a Knapsack Signal Cabin.
Mr McPhee believes the picture is of the old hut recently uncovered off the beaten track at the Lapstone Bridge Zig Zag walking track.
The Nepean District Historical Archaeology Group are working with railway experts to confirm if the building was a pointsman's hut.
Vice president of the archaeological group Richard Ward said the hut in the photo was too big to be the one they were working on.
"The size of the shed that was found was 10 feet by seven feet and the hut in the picture looks too big to be that one," Mr Ward said.
Mr Ward said although the photo is of another railway building, the photos were still a great discovery.
"There is little evidence of the railway or little recognition of the track," he said.
Mr McPhee was never an avid railway collector until he moved to Lapstone in the '60s and heard about The Zig Zag Railway which had closed in 1913.
"I had heard that there was an old railway line at Lapstone, and then all of a sudden I went looking for it and I discovered the Zig Zag," Mr McPhee said.
"I had the railway track cleaned up in 1965. It was full of scrub and lantana. I got a chap that I knew to clean out the lantana with a bulldozer because back then you couldn't walk straight up there.
"I found Lucasville station and the Knapsack Bridge."
Mr McPhee hopes to find the whereabouts of the signal cabin which features in the old black and white photograph.
If you know where the Knapsack Signal Cabin is located at Lapstone email your details to jaquilina@fairfaxmedia.com.au.
