We have already defined the environment as three phases: the geophysical-, ecological-and sociological environment, called the GES environment system. Kamo River, which flows through the center of Kyoto City, has abundant plants and animals with mountainous scenery and deep historical and cultural connections with the people of Japan. Because of these attributes, we decided evaluations from the view point of Socio should be done on-site. In this research, environmental evaluations were done, not only using conventional qualitative or quantitative indicators of the Geo and Eco environment, but also focusing on Socio aspects. In the Socio environment, riverside residents (from Suemaru-Cho; along the main stream of Kamo River) were selected for a social survey because they were regarded as playing a main role in participatory riverside environmental management. Aquatic birds were chosen as being representative of the Eco environment because according to the social survey residents are very interested in them. The properties of the Eco environment were measured throughout a year by observing and recording the bird distribution including the species, number of birds and locations. As the base of the Socio and Eco environment, the properties of the Geo environment, including amenities, were measured using GIS (Geographic Information System). The survey contained measurements of riverside residents' impressions of the Kamo River environment using the SD (Semantic Differential) method. Relation analysis using Cramer's coefficient are performed to know which feelings of GES environment or concerns of Eco relate to the impressions. Using factor analysis the factors which formed their perspectives of Kamo River are extracted and interpreted. Finally it is shown that an environmental evaluation system using impressions can be established. JFL classification: Q51, R10, R53