A feel for the local environment of Upper Teesdale and its vegetation can be found here: https://bsbi.org/wp-content/uploads/dlm_uploads/Visiting_Upper_Teesdale.pdf
To get a sense of the importance of the Teesdale Assemblage and the impacts of climate change please see this article: https://teesdaleflora.home.blog/
(1) BELLAMY, D., BRIDGEWATER, P., MARSHALL, C. et al. Status of the Teesdale Rarities. Nature 222, 238–243 (1969). https://doi.org/10.1038/222238a0
(2) HUNTLEY, B., BAXTER, R., LEWTHWAITE, K., WILLIS, S. & ADAMSON, J. (1998). Vegetation Responses to Local Climatic Changes Induced by a Water-Storage Reservoir. Global Ecology and Biogeography Letters. 7. 241-257. 10.2307/2997599.
(3) JOHNSON, G., ROBINSON, D. & HORNUNG, M. Unique Bedrock and Soils associated with the Teesdale Flora. Nature 232, 453–456 (1971). https://doi.org/10.1038/232453a0