Mole snake distribution is strange, I have never seen one here in Oudtshoorn, there are only two records at deHoop, and Cape Town and surrounds is crawling with them as along other parts of the coast.
They seem common from say Knysna to Still Baai then a gap, and then common again beyond Bredasdorp/Gaansbaai/Hermanus to Cape Town and West Coast.
Is this a feature up north and east?