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The Mtata estuary
(31°57' S;
29°10' E)
lies south of the coastal town of Port St Johns on the Transkei coast of the Eastern Cape. This system drains a catchment area of approximately 2 585 sq. km. Approximately 23% of the land-cover in the Mtata catchment was agriculture and comprised a mixture of commercial forestry and subsistence farming. About 26% of the catchment consisted of degraded grassland while 41% was natural. Natural land-cover comprised mostly grassland, bushland, and forest. Approximately 10% of the catchment consisted of mostly residential (rural) development; a small amount of commercial and industrial development was located at the inland city of Umtata.
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