ply of topo- 
would require 
he numerous 
50 a topographi- 
ate Lands De- 
te, ona 
tate set up 
8, aerial 
ir own State, 
with menbers 
ents who re- 
metrists, 
he farmer bodies 
pects, offer a 
ver nment al 
le fo fill 
| etate mapping 
. mapping, have 
‘bodies such as 
with their 
medium scale 
areas nor does 
of each topo- 
nly State 
1 photographs 
s it was decided 
iely 1:124,000, 
be flown for 
ir Force during 
erial photog- 
ive used a 
ireas and areas 
ereoplotters 
iquipment for 
'taken but owing 
>r these circum- 
> connected to 
'ontrol for most 
jepe no surveys 
sed template 
velling of 
as of the State, 
necessary for 
zh the Wild and 
variety of 
completed are 
forestry and 
slopmental pur- 
on the black 
cales varying 
ion, water con- 
13 
A small amount of bridging only has been done with this equipment as most areas 
So far mapped have had a compàratively dense pattern of control, Bridging far heights 
of up to ten stereo overlaps on every alternate run has been undertaken where 50 foot con- 
touring is required These are adjusted and intervening runs connected to adjusted 
values. 
Owing to a compromise scale of photography at 1:2h000 a C factor of up to 1000 
has been used on some projects.. This is a maximum and when mapping is required at a 
smaller contour interval larger scale Photography is flown, 
Multiplex was used to plot 2 feet contours of river areas for flood control 
investigations by the University of Queensland, Photo scale was 1:94;00 and plotting 
scale 1:3,600 controlled by ground heights and average stream gradients. 
Stereo - templates were used for the control of an area near Rockhampton, Photo 
scale was 1:24,000 and compilation scale 1:7,920, The templates were prepared in the 
Wild A8 which was also used in the plotting, 
8000 square miles of planimetric mapping has recently been compiled at 1:50,000 
whilst another 10,000 square miles is in progress, This has been controlled by astrono- 
mical fixations, assembled by slotted templates and plotted by simple graphical methods, 
A small amount of uncontrolled mosaics have been produced, This department 
does not possess lithographic equipment and any reproduction of maps or plans is by the 
usual dyeline method, 
Department of Lands, New South Wales 
The Central Mapping Authority within the Department of Lands was authorised in 
1946 but did not become active until 1950, 
Amongst other survey responsibilities the Central Mapping Authority is 
responsible for : 
(a) the systematic aerial survey of the State and the supply of prints and 
photomaps of aerial photography; 
(b) the systematic topographie mapping of the State by a series of topographic 
base maps; 
(c) the co-ordination of aerial survey and mapping activities of other State 
Government Departments and Instrumentalities and Local Government Bodies, 
Prior to 1958 all aerial photography flown for this State was by private contract 
which used Williamson Eagle IX and 0,S.C. cameras fitted with a Ross 6 inch wide angle lens, 
Recently this department acquired a Wild RC5A camera fitted with hi inch Aviogon and 8i inch 
Aviotar lenses and photography is now undertaken using this camera in a plane chartered 
from private enterprise, 
In 1952 a film repository and print library was established the purpose of which 
is to store such film owned by the State together with records of Commonwealth photography 
available, This library also provides a service of contact prints and photomaps for 
issue or purchase as required, 
It is anticipated that the State will be covered completely by aerial photog- 
raphy within the next year whilst all of the State will be covered by modern photography 
within the next five years. 
As is common practice with similar mapping organisations this department readily 
makes available a photomap of any new area of photography, Photographs are assenbled 
without any regard to rectification or tone and reproduced at a scale of 1:63,360, 
It is State policy that areas in the Eastern and Central Division (areas of in- 
tense development) will be covered by standard topographical maps at a scale of 1:31680 
with 25 feet contours in map areas of 15 minutes of longitude by 7+ minutes of latitude 
whilst the Western Division (area of sparse population and development) will be covered 
by planimetrie maps at a scale of 1:250,000 in map areas of 1% degrees of longitude by one 
degree of latitude, 
To date approximately 7000 square miles of standard topographical mapping has 
been compiled using Wild A5, A6 and A8 Stereoplotting Equipment, Approximately 10,000 
square miles of planimetric mapping has also been compiled using slotted template assemb- 
lies and graphical methods of plotting. 
Adjustment of photography for stardard 1:31680 mapping is carried out by Wild 
A5's, For the purposes of adjustment an area of 30 minutes of longitude by 30 minutes