A characteristic feature of the catchment is the opening of the valley on the south side of the valley at the course in the N–S. Stream gradient is 16%. Orographic conditions set for Dupniański Stream are characteristic for most part of the Beskid Śląski. Watercourse headwaters height is 808.75m a.s.l. and total length of watercourse is 5.7km. Water network density: 3,43 km.km^-2 (Gołąb et all. 2006).

Catchment of the Dupniański Stream has a high rate of forest cover, with a negligible share of agricultural land and non-forest area. Description of the catchment against the hydrological conditions of Beskid Slaski to suggest that, despite the formal membership Dupniański Stream to the Olza River catchment, it represents the full terms and conditions of streams belonging to the Carpathian Basin. According to the distribution of the hydrogeological study area catchment of Dupniański Stream is located in the Carpathian region. Occuring in this area flysch sandstone - shale are less permeable and thus are of low retention capacity. Narrow ridges of the corrugated lines are separated by valleys with a depth of 400 - 600 m, with numerous rapids and waterfalls and rocky slopes. Southern slopes are often modeled by a landslide.