Editing Copenhagen (section)

===Topography===
The central area of the city consists of relatively low-lying flat ground formed by [[moraine]]s from the last ice age while the hilly areas to the north and west frequently rise to {{convert|50|m|abbr=on}} above sea level. The slopes of [[Valby]] and [[Brønshøj]] reach heights of over {{convert|30|m|abbr=on}}, divided by valleys running from the northeast to the southwest. Close to the centre are the [[The Lakes, Copenhagen|Copenhagen lakes]] of Sortedams Sø, Peblinge Sø and Sankt Jørgens Sø.<ref name="kgdsd">{{Cite encyclopedia|title=København – geografi|encyclopedia=Den Store Danske|url=http://www.denstoredanske.dk/Danmarks_geografi_og_historie/Danmarks_geografi/K%C3%B8benhavn/K%C3%B8benhavn/K%C3%B8benhavn_-_geografi|language=da|access-date=16 November 2013|archive-date=22 October 2013|archive-url=https://web.archive.org/web/20131022203103/http://www.denstoredanske.dk/Danmarks_geografi_og_historie/Danmarks_geografi/K%C3%B8benhavn/K%C3%B8benhavn/K%C3%B8benhavn_-_geografi|url-status=live}}</ref>

Copenhagen rests on a [[subsoil]] of flint-layered limestone deposited in the [[Danian]] period some 60 to 66&nbsp;million years ago. Some [[greensand (geology)|greensand]] from the [[Selandian]] is also present. There are a few faults in the area, the most important of which is the Carlsberg fault which runs northwest to southeast through the centre of the city.<ref>{{cite web|last1=Lars Nielsen|last2=Alexander Lassen|last3=Hans Thybo|year=2005|title=Carlsbergforkastningen|url=http://geocenter.dk/xpdf/geoviden-4-2005.pdf|access-date=17 November 2013|publisher=Geoviden|pages=8–11|language=da|issue=4|archive-date=25 October 2006|archive-url=https://web.archive.org/web/20061025140208/http://geocenter.dk/xpdf/geoviden-4-2005.pdf|url-status=live}}</ref> During the last ice age, glaciers eroded the surface leaving a layer of moraines up to {{convert|15|m|abbr=on}} thick.<ref>{{Cite encyclopedia|title=København – geologi|encyclopedia=Den Store Danske|url=http://www.denstoredanske.dk/Danmarks_geografi_og_historie/Danmarks_geografi/K%c3%b8benhavn/K%c3%b8benhavn/K%c3%b8benhavn_(Geologi)|language=da|access-date=17 November 2013|archive-date=22 October 2013|archive-url=https://web.archive.org/web/20131022234921/http://www.denstoredanske.dk/Danmarks_geografi_og_historie/Danmarks_geografi/K%C3%B8benhavn/K%C3%B8benhavn/K%C3%B8benhavn_(Geologi)|url-status=live}}</ref>

[[Geology|Geologically]], Copenhagen lies in the northern part of Denmark where the land is rising because of [[post-glacial rebound]].