Digimap is one of the most valuable resources for Geography and Environmental Science students. It is an online map and data delivery service and offers access to a range of datasets, including Ordnance Survey, historical, geological, LiDAR and marine maps. You can create and annotate a map or download data to use with GIS or CAD software.
The following map collections are available:
Ordnance survey
The original and definitive service providing a full range of topographic Ordnance Survey data for the UK.

OS Map
Environment
This service provides access to Land Cover data from the Centre for Ecology and Hydrology. Separate datasets are available for 1990, 2000, 2007 and 2015.

Environment Digimap
Digimap Support
http://digimap.edina.ac.uk/webhelp/resources/
As well as an FAQ section, community forum and detailed, visual guides, the help section also provides a large number of case studies, featuring worksheets and other exercises, which you can use to familiarise yourself with the different Digimap products.
Further Information (December 2018)
Read about the new Digimap collections that we now have access to, including Aerial, Historic and Marine data.