Ice friction is affected by various system and surface related parameters such as e.g. ice temperature, ambient air temperature and humidity, relative sliding velocity, specific surface pressures and surface roughness of samples. The influences of these parameters cannot be easily separated from each other. Therefore, friction on ice is a very complex tribological system and it is challenging to draw sound conclusions from the experiments. In this work, ice friction experiments with steel samples having different surface roughness were carried out. Two tribological experimental setups were used: (i) an oscillating tribometer, where the coefficient of friction was assessed and (ii) an inclined ice track where the sliding velocity of the steel samples was determined. For both experimental setups, the environmental parameters such as air temperature, relative humidity and ice surface temperature as well as the test parameters such as normal load, surface pressure etc. were kept constant. The results of the experiments are discussed in relation to the ice friction mechanisms and the friction regimes.