Alluvial fan could be the answer. Alluvial fans are cone shaped deposits of sedimentary particles. The particles can be sand. silt, gravel or clay. These land-forms are formed at the mouth of canyons or in valleys where ephemeral streams can occasionally transport material to the mouth of the canyons. An ephemeral stream is one that is created after a shower of rain or other form of precipitation; they are not permanent streams. <span />
<span>These are known as tephra, pyroclats or more generally as volcanic bombs.</span>
Some of the activities are:
- fishing
- watching beautiful sites
- hiking
- kayaking
- dog sleds
and etc.
Clear-cutting will result in the suffering and death of many of the animals who live in the rainforest. It will adversely affect the hunting territories of indigenous forest-dwelling people. Moreover, it will destroy the whole forest ecosystem. Lastly, it will result in the extinction of animal and plant species whose generic material is essential to future drug.