Click on the regions on the map to zoom in and locate the mountains.
The regions, with their names and numbering are taken from The Relative Hills of Britain by Alan Dawson.
A Tump is a hill in Scotland, England, Wales or the Isle of Man which is separated from adjacent tops by a height difference
of at least 30 metres on all sides. The higher of the Tumps, including all over 500m in height, are included on other lists
such as the Simms and Deweys.
For the lower Tumps, the accuracy of the data on this site is not necessarily as dependable nor subject to as much scrutiny
as those above 500m. For lower lying hills it can be much more difficult to identify the actual summit, so some
grid references given may be more an indication of the general area of the summit. There is also a greater likelihood
of encountering access problems when trying to bag lower Tumps.
The Tumps below 500m appear as Class=4, 3, 2, 1 or 0 (short for 400m tops, 300m tops, etc.) on this website.
The hills between 490 and 499m with 20-29m drop are also included as class=s4.