
638 RECORDS OF THE S.A. MuSEUM 
of Crower, a distance of 60 miles. In this distance it maintains a remarkable 
uniform appearance, rising rather gently from the shore platform. The shore 
platform itself gives evidence of having been a relatively immature one when the 
sea retired at the onset of post-Hast Avenue emergence. There are traces of what 
may have been an abandoned bar on the foreshore. or a lagoon shore. This locally, 
is called a ‘' mid-bank,’' 
Originally the general level of East Avenue Terrace was estimated to be 
150 feet (46) metres above sea level, this level being based ou the estimated altitude 
of the strandline upon which the Baker Range deposits were laid down. Newly 
available survey data first quoted by Croeker and Colton (1946) suggested to 
them that a lower altitiide near 105-110 feet (32-34 metres) might be a more 
hkely mean figure, This would briug about very close correlation with Zeuner's 
results. Vast changes evideutly live taken place since the Kast Avenue Terrace 
was formed. In some places quantities of quartz sand have been left on the 
surface by the leaching away of the lime content of the upper layers of the dunes, 
At times this quartz saud has been transported by wind, and has in places modified 
the original configuration and simplicity of the terrain, During perivds when 
sea level was low, stream beds which eross the terrace excayated their channels, 
causing other modifications. One such stream, passing down through Tatiara 
Point, Avenue Range Station, aud thence north to Wimpinnierit, drew its waters 
from country inland beyond the terrace. This stream at first flowed west, but was 
diverted in a northerly direction by the growing dane series. Llowever, it kept 
its mouth open and passed through the latest shore deposits of the terrace, west 
of Wimpinmerit, in the Hundred of Peacock. From here onwards the stream is 
known as Brown Cattle Creek. he bed of this stream between the Tatiara Point 
antl its place of embouchure on to Hast Avenue foreshore near Wimpinmerit 
drops from 91 feet (28 mefres) above sea leyel down to 63 feet (19 metres) ina 
distance of 35 niles (9 inehes per mile), 
At the crossing of the Kingston-Naracoorie railway over the present Bakers 
Range excavated drain, the level of the plateau is 109 feet (34 metres), he lowest 
reading between Baker and Ayenue Range near the northern boundary of the 
Hundred of Fox is 108 feet (33 metres). Away from major watercourses, as in 
the north-western area of the IInndred of Short a low reading lies at 119 feet 
(37 metres), while at the south-western corner of the Hundved of Joyee the lowest 
readings also are at 119 feet. he south-western corner of the Tlundred of 
Lochaber lies at 113 feet (85 metres), With exceptions the available drainage 
survey data yields information chiefly about mature drainage lines and must, 
therefore, be interpreted with caution. On the evidence, the Crocker and B, C, 
Cotton estimate of 105-110 feet (32-84 metres) for the terrace is prabably as close 
as can be ascertained at present; but. the earliest dunes of the series at the inland 
