Some of the hills are formed from dead volcanoes that last erupted 400 million years ago,[2] and all show the effect of glaciation.
The tale of the seven hills of Edinburgh is popular enough that several local business take their name from it, including a dentist,[3] a tour company,[4] and a cèilidh band.
[6] Before the construction of the New Town, Edinburgh was built on a single hill, the volcanic Castle Rock and its tail that extended to the east.
Some of these hills rise to heights substantially above the traditional seven — for example parts of Fairmilehead at 183 metres (600 ft).
Outlying hills include the climb from Tollcross to Bruntsfield and beyond Morningside to Fairmilehead, and Liberton Brae.