Gloucestershire Archaeology Service (www.gloucestershire.gov.uk/archaeology) maintain a register of Historical Assets. This is a large dataset containing many expected and some unexpected entries. Each entry includes a description, a location and any relevant references.
All the Gloucestershire HER data is here www.gloucestershire.gov.uk/her.
We have a copy of the Slimbridge data (extracted in November 2022). This comprises the data itself (2022 11 Slimbridge.html) and a series of maps showing the location of the entries. This information can be found here https://1drv.ms/f/s!AkjbXAGMJje2h8EMuWOw3zFQqiC-8A?e=evFBdh
This information would benefit from a review, possibly adding recent photos and any information to update the record. If anyone is interested please contact email@example.com