An aerial view of the Christchurch gasworks showing the ...

The south east view of the Ashburton gas works.

View of the Christchurch Gas Company gas works.

Collapse of number 6 gasholder at the Christchurch gas works.

Gas works byproducts treatment area seen from the Waltham Street ...

A view of the byproducts area at the gas works.

The remains of gasholder Number 6 at the gas works which ...

Aerial view of the gas works.

Bill Muston atop of the remains of gasholder no. 6 which is ...

Aerial view of the gas works site with the Waltham Street bridge ...

Gasholder at the Christchurch Gas Company gas works.

Demolition of the Christchurch Gas Company gas works.

Demolition of gasholder at the Christchurch Gas Company gas ...

Gas supply site in Timaru.

Number 7 and number 6 gasholders at the Christchurch Gas Company ...

Number 7 and number 6 gasholders at the Christchurch Gas Company ...

Aerial view of the gas works with Waltham Street bridge in the ...