The following environmental mapping resources have been used in the production of maps used on this website.
QGIS

Maputnik
Ordnance Survey
https://www.ordnancesurvey.co.uk/business-government/environmental-sustainability
Historic Environment Reports
https://historicengland.org.uk/advice/technical-advice/information-management/hers/
Heritage Gateway
https://www.heritagegateway.org.uk/gateway/chr/herdetail.aspx?crit=&ctid=98&id=4788
Devon County Council Environment Viewer
Devon Biodiversity Record Centre
Local Devon Maps curated by National Library of Scotland
More resources will be added later.