Fitxer:WRC-1980.pngDescriptionWRC-1980.png Map of World Rally Championship rallies held in 1980. Color coding is black for tarmac events, brown for gravel, blue for snow/ice
Fitxer:Wrc.pngthe corrected vector version File:Wrc.svg instead. Water retention curve from: http://en.wikipedia.org/wiki/Image:Wrc.jpg calculated diagram of soil with
Fitxer:WRC-2000.pngDescriptionWRC-2000.png Map of World Rally Championship rallies held in 2000. Color coding is black for tarmac events, brown for gravel, blue for snow/ice
Fitxer:WRC-1983.pngDescriptionWRC-1983.png Map of World Rally Championship rallies held in 1983. Color coding is black for tarmac events, brown for gravel, blue for snow/ice
Fitxer:WRC-1978.pngDescriptionWRC-1978.png Map of World Rally Championship rallies held in 1978. Color coding is black for tarmac events, brown for gravel, blue for snow/ice