Many analyses of lightning parameters and lightning densities are found in literature. Most of the data are based on single station measurements and therefore, strictly speaking, they are only valid for a certain altitude. With lightning location systems it is possible to collect and analyze lightning parameters over large areas. For such analyses, a lightning location network of high detection efficiency over a large area is necessary. Because the Austrian lightning location network is a network of small baselines it has a very high detection efficiency and is therefore ideal for such an investigation. In this paper we show preliminary results of lightning density and lightning peak current as a function of altitude above sea level in Austria.