The Battle of Magersfontein was fought on 11 December 1899, at Magersfontein, near Kimberley, South Africa, on the borders of the Cape Colony and the independent republic of the Orange Free State. British forces under Lieutenant General Lord Methuen were advancing north along the railway line from the Cape to relieve the siege of Kimberley, but their path was blocked at Magersfontein by a Boer force that was entrenched in the surrounding hills. The British had already fought a series of battles with the Boers, most recently at Modder River, where the advance was temporarily halted.
Lord Methuen failed to perform adequate reconnaissance in preparation for the impending battle and was unaware that Boer Vecht-generaal De la Rey had entrenched his forces at the foot of the hills, rather than the forward slopes, as was the accepted practice.
Wikipedia https://en.wikipedia.org/wiki/Battle_of_Magersfontein
Address South Africa
Coordinates -28°58'18.637" N 24°41'39.425" E