The Munin River (Svalbard) is a mountainous braided proglacial river. It drains from two valley glaciers developing an elongated channel belt and turning into a wide braided outwash fan before entering the main river. The Munin River is in its axial head supplied by the material from glaciers, and along the stream by material from lateral sources, i.e. braided outwash fan, debris-flow and fluvial-flow dominated fans. Detailed analyses of clast roundness showed that roundness suddenly changes to higher degrees in negative correlation with channel belt width and sinuosity of the channels. The roundness increases rapidly in sections with small channel belt width and low sinuosity, which can be seen in the bedrock gorge. On the contrary, the roundness does not change much in sections with large channel belt width and high sinuosity. The morphological changes of the channel belt are controlled by the bedrock morphology of the catchment, which is the main factor affecting the clast roundness in the Munin River. The nature of the lateral material sources and the downstream traction affect rather the individual gravel fractions.

An accumulation of glacial sediments is located near Písečná village in the depression between the Sokol Ridge

and Zlaté Hory Highlands NNE of Jeseník town (Eastern Sudetes). The accumulation lies at the lateral side

of the mountain valley of the Bělá River and fills a preglacial palaeovalley of this river. Research combining

facies analysis of outcrops, ground penetrating radar survey, interpretation drilling survey, and modelling of

the preglacial relief was undertaken at the site. According to the results obtained, the upper part of the sedimentary

accumulation represents a coarse-grained terminoglacial glaciofluvial delta of the Gilbert type. The

development of the accumulation has dominantly been driven by the preglacial morphology. Facies typical for

foresets of coarse-grained deltas represented mainly by high-density flows, cohesionless debris flows, debris

falls and less common low-density flows were found in the outcrops. The delta near Písečná prograded into

a lake dammed by the ice-sheet front in the north. The lake was bounded by the slopes of Sokol Ridge, Zlaté

Hory Highlands and Góry Parkowe on other sides. The lake level reached an altitude of up to 430 m a.s.l., as

the coarse-grained delta plain base lies at this level.