The Tlaeeng Pass has a fairly minor altitude gain of 140m and only one hairpin chicane section. Other than those, the pass is easy enough to traverse, but what makes this pass stand out from the rest is it's maximum altitude of 3262m which makes it the 2nd highest pass in Lesotho. This road is also known as the Oxbow-Mapholaneng Road.
Together with the Moteng, Mahlasela and Khalo La Lithunya Passes, it forms a quartet of altitude gaining passes on the A1 route between Butha Buthe and Mokhotlong. The main point of interest occurs at the southern end of the pass which is the Letseng Diamond Mine.
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