Attheeasternendthesehillshavecuriousfungoidorcup-shapedhollows，ofasizewhichsuggeststheideaofcratersWithinthesearemassesoftherockcrystallizedinthecolumnarformofthisformation。
Thetopsofthecolumnsarequitedistinct，ofthehexagonalform，likethebottomofthecellsofahoneycomb，buttheyarenotpartedfromeachotherasintheCaveofFingalInmanypartsthelava-streamsmayberecognized，fortheretherockisrentandsplitineverydirection，butnosoilisyetfoundintheintersticesWhenweweresittingintheevening，afterahotday，itwasquitecommontohearthesemassesofbasaltsplitandfallamongeachotherwiththepeculiarringingsoundwhichmakespeoplebelievethatthisrockcontainsmuchironSeverallargemasses，insplittingthusbythecoldactingsuddenlyonpartsexpandedbytheheatoftheday，haveslippeddownthesidesofthehills，and，impingingagainsteachother，haveformedcavitiesinwhichtheBakaatookrefugeagainsttheirenemies。
Thenumerouschinksandcranniesleftbythesehugefragmentsmadeitquiteimpossiblefortheirenemiestosmokethemout，aswasdonebytheBoerstothepeopleofMankopane。
Thismassofbasalt，aboutsixmileslong，hastilteduptherocksonboththeeastandwest；theseupheavedrocksaretheancientsilurianschistswhichformedthebottomofthegreatprimaevalvalley，and，likealltherecentvolcanicrocksofthiscountry，haveahotfountainintheirvicinity，namely，thatofSerinane。
InpassingthroughthesehillsonourwaynorthweenterapassnamedManakalongwe，orUnicorn’sPassTheunicornhereisalargeediblecaterpillar，withanerect，horn-liketail。