On the following day Mr.McMinn, Mr.Bacon, and I rode up its channel, and at about twelve miles we found a water-hole and returned.

The country consisted chiefly of open sandhills well grassed.

I mentioned previously that from Port Augusta, northwards and north-westwards, the whole region consists of an open stony plateau, upon which mountain ranges stand at various distances; through and from these, a number of watercourses run, and, on a section of this plateau, nearly 200 miles in extent, the curious mound-springs exist.

This formation, mostly of limestone, ceases at, or immediately before reaching, the Finke, and then a formation of heavy red sandhills begins.

Next day our friends departed for the Charlotte, after making me several presents.