This article aims at the mapping of Geomorphological Units of the Jaguarí Mirim, Inhadiju and Piquiri Rivers, located in the West of Rio Grande do Sul - Brazil. This documentary mapping was based on a set of morphometric properties of relief, geology, soil and erosion processes. Data analyzes defined two units characterized as: Unit I - Flat Top Relief in Volcanic Spill: presents flat relief with relatively low erosive processes and weathering; Unit II - Colchicine Hills: The gently undulating areas are formed under the top of the Panalto; Unit III - Morrotes and Morrotes in Volcanic Rock: formed by a strongly undulating relief with cliffs; Unit IV - Morrotesem Sandstone: composed by isolated morrotes with origin associated to the existence of cohesive sandstone that maintains the flat top relief; Unit V - Colinas in Sandstone: relief of hills located to the middle and low cursodos streams, with occurrence of accelerated erosive processes generating areaise voçorocas, sometimes with outcrops of cohesive sandstone in the half sloped or top; Unit IV - Relief Plane in Low Altitude: relief of topografiaplana that predisposes the processes of superficial dynamics generating accumulation of sediments and the formation of fluvial terraces. The fragility of natural systems, in the face of anthropic interventions, is largely linked to their genetic characteristics. In this way, the geomorphological analysis of environmental studies is a tool for the planning of sustainable forms in the activities implanted in the region. Unit V - Colinas in Sandstone: relief of hills located to the middle and low cursodos streams, with occurrence of accelerated erosive processes generating areaise voçorocas, sometimes with outcrops of cohesive sandstone in the half sloped or top; Unit IV - Relief Plane in Low Altitude: relief of topografiaplana that predisposes the processes of superficial dynamics generating accumulation of sediments and the formation of fluvial terraces. The fragility of natural systems, in the face of anthropic interventions, is largely linked to their genetic characteristics. In this way, the geomorphological analysis of environmental studies is a tool for the planning of sustainable forms in the activities implanted in the region. Unit V - Colinas in Sandstone: relief of hills located to the middle and low cursodos streams, with occurrence of accelerated erosive processes generating areaise voçorocas, sometimes with outcrops of cohesive sandstone in the half sloped or top; Unit IV - Relief Plane in Low Altitude: relief of topografiaplana that predisposes the processes of superficial dynamics generating accumulation of sediments and the formation of fluvial terraces. The fragility of natural systems, in the face of anthropic interventions, is largely linked to their genetic characteristics. In this way, the geomorphological analysis of environmental studies is a tool for the planning of sustainable forms in the activities implanted in the region. with occurrence of accelerated erosive processes generating areaises and gullies, sometimes with outcrops of cohesive sandstones in the soils sloping at the top; Unit IV - Relief Plane in Low Altitude: relief of topografiaplana that predisposes the processes of superficial dynamics generating accumulation of sediments and the formation of fluvial terraces. The fragility of natural systems, in the face of anthropic interventions, is largely linked to their genetic characteristics. In this way, the geomorphological analysis of environmental studies is a tool for the planning of sustainable forms in the activities implanted in the region. with occurrence of accelerated erosive processes generating areaises and gullies, sometimes with outcrops of cohesive sandstones in the soils sloping at the top; Unit IV - Relief Plane in Low Altitude: relief of topografiaplana that predisposes the processes of superficial dynamics generating accumulation of sediments and the formation of fluvial terraces. The fragility of natural systems, in the face of anthropic interventions, is largely linked to their genetic characteristics. In this way, the geomorphological analysis of environmental studies is a tool for the planning of sustainable forms in the activities implanted in the region. relief of topografiaplana that predisposes the processes of superficial dynamics generating accumulation of sediments and the formation of fluvial terraces. The fragility of natural systems, in the face of anthropic interventions, is largely linked to their genetic characteristics. In this way, the geomorphological analysis of environmental studies is a tool for the planning of sustainable forms in the activities implanted in the region. relief of topografiaplana that predisposes the processes of superficial dynamics generating accumulation of sediments and the formation of fluvial terraces. The fragility of natural systems, in the face of anthropic interventions, is largely linked to their genetic characteristics. In this way, the geomorphological analysis of environmental studies is a tool for the planning of sustainable forms in the activities implanted in the region.
