Pltysiography of the Glenelg River. 113 



and then south-southeast about IS miles, forming a V-shaped loop 

 with the sharp angle to the- north. This angle is at a point east of 

 the Black Range, near Brim Spring. A low gap occurs, and it is 

 interesting to know that some years ago a scheme was proposed 

 whereby a canal was to be dug to carry the water from the upper 

 Glenelg across to the Wimmera on the north. While not able to 

 visit the spot, the writer has obtained much valuable information 

 from the details of the railway survey through the gap, and also 

 from Miss Sinclair, of the Brim Spring school. There appears to 

 be evidence that the upper Glenelg originally flowed north, perhaps 

 down Norton's Creek, to the Wimmera. This area is well worth 

 closer investigation. 



(e) Minor Streams. — A numljer of other streams present pecu- 

 liarities in their courses, and leave much room for detailed 

 physiographic work. Of these may be mentioned the Pigeon Ponds. 

 Steep Bank rivulet. Harvester Creek, and the Stokes River; the 

 latter shows a remarkably sharp southern loop north of the town- 

 ship of Lyons, probably due to the lava stream having filled up 

 part of its former valley. 



VI.— Lakes. 



The basin of the Glenelg has an extremely ill-defined boundary. 

 Except in the case of the Grampian district, low, flat, swampy 

 divides are the rule. On the eastern side this low divide has 

 been carefully selected as the route for the Dunkeld-Portland por- 

 tion of the railway; lakes and swamps, lying on the basalt sheet, 

 are common here. To the north, in area B, the very numerous 

 lakes are perhaps to some extent relics of the streams which 

 attempted to make their way northwards before being captured by 

 the active headward erosion of the Glenelg ; there are no streams 

 whatever adjacent to the Glenelg valley here. In the north-west 

 one or two ill-defined creeks occur, such as the Mosquito creek, 

 towards Apsley. To the west of the Glenelg, if we except a few 

 minor streamlets, there are no tributaries whatever; the water 

 collects in the depressions, and is got rid of by evaporation and 

 percolation. Most of these swamps, especially across the border, 

 are elongated along north-north-west axes. Woods^ records that 

 at flood times the Dismal Swamp — a large swamp north of Mount 

 Gambler — drains eastward into the Glenelg. 



1 Geological Observations in South Australia. J. E. Woods, 1862 



