Since the MAPS program began in 1989, more than 1400 stations covering nearly every state and Canadian province have been operated for at least one year by IBP and our many collaborators. The interactive map below shows the location of our past and present stations. Though no longer active, past stations provide important baseline and historical data that continues to strengthen the program. Click on the placemark icons to find out more about each station. Pink dots indicate past stations and green markers indicate stations that planned to operate in 2023.