Cecil Chisholm,
Sir John French: An Authentic Biography
“ In the plain to the west of Colesberg there arose an isolated kopje, some six hundred feet in height, called Coles Kop. This hill, which rises almost sheer from the plain, taxes the wind of the unencumbered climber to the utmost. Being higher than the surrounding kopjes, it commands both Colesberg and the enemy's laager. The Boers had left it ungarrisoned, thinking it useless either to themselves or to the enemy. They made a very great mistake. For the mere hint that a thing is impossible fires French to attempt it. ”
