thumb|upright=2|A map charting the routes of the largest trekking parties during the first wave of the Great Trek (1835–1840) along with key battles and events. The Great Trek occurred between 1835 and the early 1840s. During that period some 12,000 to 14,000 Boers (including women and children), impatient with British rule, emigrated from Cape Colony into the great plains beyond the Orange River, and across them again into Natal and the vastness of the Zoutspansberg, in the northern part of the Transvaal. Those Trekboers who occupied the eastern Cape were semi-nomadic. A significant number in the eastern Cape frontier later became ('border farmers') who were the direct ancestors of the Voortrekkers.
thumb|upright=2|A map charting the routes of the largest trekking parties during the first wave of the Great Trek (1835–1840) along with key battles and events. The Great Trek occurred between 1835 and the early 1840s. During that period some 12,000 to 14,000 Boers (including women and children), impatient with British rule, emigrated from Cape Colony into the great plains beyond the Orange River, and across them again into Natal and the vastness of the Zoutspansberg, in the northern part of the Transvaal. Those Trekboers who occupied the eastern Cape were semi-nomadic. A significant number in the eastern Cape frontier later became ('border farmers') who were the direct ancestors of the Voortrekkers.