Below are links to some useful free resources open to all interested in past landscapes and the archaeology within them.
Shuttle Radar Topography Mission 90m Data from CGIAR-CSI – this dataset contains digital elevation data across the entire globe which can be browsed through a handy Google Earth file developed by researchers at King’s College London.
The Landsat GeoCover dataset contains satellite imagery covering almost the entire globe, and is accessible through the Global Land Cover Facility Earth Science Data Interface.
The General Bathymetric Chart of the Oceans (GEBCO) dataset consists of global terrain models for the ocean and land.
The Archaeology Data Service is an open access digital archive for archaeological projects from the UK and internationally.