Where were early hominin fossils predominantly found?

The predominant findings of early hominin fossils are centered in the Great Rift Valley in Kenya due to the geological features and archaeological significance of the region. The Great Rift Valley is often referred to as the "cradle of humanity" because it is one of the richest areas for early human fossils, providing clues about the evolution of our ancestors.

The unique geological processes in the Great Rift Valley, including volcanic activity and sedimentation, have helped preserve these fossils, allowing anthropologists and archaeologists to study them effectively. The environment was historically suitable for early hominins, providing resources necessary for survival, which contributes to the high number of fossil discoveries.

While other locations around the world have significant archaeological findings, the Great Rift Valley stands out specifically for its contributions to our understanding of human evolution, making it the most relevant and accurate answer.