A loose variegated clayey sandstone, with many irregular holes; cropped out in the beds of the creek.

Coxen's Peak and Range were found to be composed of horizontal strata of excellent sandstone, rising by steep terraces, on the western side, but sloping gently down to the east; its summit is covered with scrub, but its eastern slope with groves of grass-trees.

The view from the top of Coxen's Peak was very extensive: towards the south-west and west, Peak Range was seen extending from Scott's and Roper's Peaks to Fletcher's Awl; and, beyond the last, other mountains were seen, several of which had flat tops.

Mount Phillips seemed about thirty or forty miles distant; and a very indistinct blue hill was seen to the W.N.W.To the northward, ranges rose beyond ranges, and to the eastward, the country seemed to be flat, to a great extent, and bounded by distant mountains.

To the southward, the eye wandered over an unbroken line of horizon, with the exception of one blue distant elevation: this immense flat was one uninterrupted mass of forest without the slightest break.