Description: What you have in front of you here is the Station Catalogue of INTERACT Terrestrial Research Infrastructures in arctic and mountain areas of the Northern Hemisphere. The catalogue is the vehicle for providing a one-stop shop for scientists and stakeholders looking for suitable terrestrial fi eld bases for their activities. The INTERACT Station Catalogue was developed within the INTERACT Station Managers’ Forum, a group of station managers representing 45 arctic and mountain research stations. The Station Mangers’ Forum provides a platform for exchange of information between stations in the network and between managers and other partners of INTERACT. This group of people decided on the information to be included in the INTERACT Station Catalogue (Box page 9), and they determined how the catalogue should be structured. Afterwards, each station manager has provided the information (incl. pictures) relevant for their specifi c site to the catalogue. The INTERACT Station Catalogue demonstrates the unique characteristics of each station as well as the large diversity of stations in the entire network. We hope that the standardised data of station characteristics provides a helpful opportunity for researchers, institutions, organisations and other stakeholders to identify stations that suit their specifi c needs in terms of environmental conditions, facilities or services off ered.