The Ter river is in the far northeast of Catalonia. It is 208 kilometres long and has a basin surface area of 3,010 square kilometres. The Ter begins in the Pyrenees, in the municipal district of Setcases and flows into the Mediterranean at “Gola del Ter”. Along the course of the river waters are received from 154 municipalities. The Ter river is the longest in the Pyrenees-Mediterranean hydrographic network, together with the Llobregat, and there are five different sections which correspond to the five important landscapes found along its course.
- Pyrenees: This is the section where the sources of the Ter and the Freser can be found, in the region of Ripollès. Here, spectacular views of the most representative peaks of the Pyrenees mountain range can be appreciated.
- Meanders of Osona: The Ter winds and meanders through this region and changes direction in a spectacular fashion from north-south to east. Along this section some of the most important industrial colonies of the Ter, such as Borgonyà and Vila-seca, can be found.
- Sau-Susqueda Reservoirs: Between the regions of Osona and La Selva there is an important complex for the supply of water and for hydroelectric power generation. Despite having been altered by human activity, today the landscape conveys a sensation of great naturalness and tranquillity.
- Selva-Girona Plain: Along this section the Ter flows through the city of Girona, which offers a wide range of services and has a monumental heritage of enormous interest. Of particular note are the riverside tree plantations along the banks of the Ter (Deveses) and the vegetable gardens.
- Baix Ter Plain: This is an agricultural plain notable for its mosaic landscape of cultivated fields doted with small towns. The presence of the Medes Islands and of the Baix Empordà marshes has created a valuable natural environment.
The majority of natural European landscapes can be found along the Ter basin, a real variety and wealth of landscapes thanks to its geography, differences in altitude of around 3,000 metres and a wide variation in climate. It is a region where landscapes characteristic of three important biogeographic regions, the Eurosiberian, Mediterranean and boreoalpine, meet.