INNS Mapper relies on records of non-native plant species contributed by members of the public, members of Local Action Groups and other organisations. Once logged in, this section will allow you to explore the rivers that have already been surveyed within Yorkshire, giving you an overview of what's been done, and what we still need to do.

  • For our partners and other related organisations, this map is designed to help you to plan which stretches of river would be most effective to survey in the near future.
  • For our volunteers and members of the public, it is for you to see how you are contributing to survey efforts across the county.

Please register (it's quick and easy to do) or sign in using the form on the right to explore INNS mapper data and upload your data.

Become a Surveyor now

We are always looking for new surveyors, if you are interested in becoming a volunteer surveyor, please email Your data will be fed directly into INNS mapper, and will help to guide future work within Yorkshire.

Alternatively, you can use the below app to make a note of INNS when you're out and about. Data from PlantTracker feeds directly into INNS Mapper, but is a national initiative so you can use it anywhere in the UK.

Download the PlantTracker App now

Available free from the iTunes App Store and Android Market

    Download from the iPhone App Store       Download for Android

Giant hogweed