The Council for Geoscience, as the national custodian of all geoscience data in South Africa, has embarked on the development of an updated and digitally interactive geological map of South Africa. This map takes advantage of fundamental geological data that has been collected over a period spanning more than a century and is presented on a scale of 1:1 000 000 scalable to a resolution of 1:250 000. Several previous inconsistencies were noted and have been resolved using advanced technological intervention and/or targeted field work.