| Catchment Characteristics | Land and Estuary Uses | Ecology | Water Quality | |
| Threats | Hydrodynamics and mouth dynamics | Physical Features | Climate | References |
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HOLGAT RIVER ESTUARY: General information and location |
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General | ||||||
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Accessible by State Alluvial Diggings salt roads running along the coast from Port Nolloth to Alexander Bay. As the coastal strip between Port Nolloth and Alexander Bay is mined for diamonds by State Alluvial Diggings, access to the Holgat Estuary is prohibited for security reasons. (Ref 1) | ||||||
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the ECRU survey on 14 October 1980, the estuary was dry with
indications of past intrusion of sea water (dried kelp) during hight
tides. The river channel is lined by low broken cliffs (3-10 m
high) down to about 3km from the mouth, indicating substantial cutting
action by water.
According to an article in Die Burger of 27 January 1981, the Holgat flooded in March 1961. This would seem to contradict the above report of the Holgat last having flooded 50 years ago, and also appears to be contradicted by undamaged road causeways. (Ref 1) |
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Location (co-ordinates) | ||||||
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28° 59' S 16° 43' E | ||||||
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Map of the Holgat River Estuary | |||||
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Dimensions | ||||||
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| Useful links | ||||||
