Editing Brandenburg (section)

==Geography==
{{See also|Berlin/Brandenburg Metropolitan Region|List of cities in Brandenburg by population}}
Brandenburg is bordered by [[Mecklenburg-Vorpommern]] in the north, [[Poland]] in the east, the [[Free State of Saxony|Freistaat Sachsen]] in the south, [[Saxony-Anhalt]] in the west, and [[Lower Saxony]] in the northwest.

The [[Oder river]] forms a part of the eastern border, the [[Elbe|Elbe river]] a portion of the western border. The main rivers in the state itself are the [[Spree (river)|Spree]] and the [[Havel]]. In the southeast, there is a wetlands region called the [[Spreewald]]; it is the northernmost part of [[Lusatia]].
{{Further|Mathiasberg}}

===Protected areas===
Brandenburg is known for its well-preserved natural environment and its ambitious natural protection policies which began in the 1990s. 15 large protected areas were designated following [[German reunification|Germany's reunification]]. Each of them is provided with state-financed administration and a park ranger staff, who guide visitors and work to ensure nature conservation. Most protected areas have visitor centers.
{{Further|Tree-top walk Beelitz-Heilstätten}}

'''National parks'''
*[[Lower Oder Valley National Park]] (106&nbsp;km<sup>2</sup>)

'''Biosphere reserves'''
[[File:Spreewald 4.jpg|thumb|The [[Spreewald]], a [[biosphere reserve]] by [[UNESCO]]]]
*[[Spreewald]] Biosphere Reserve ({{convert|474|km2|sqmi|0|abbr=on|disp=or}})
*[[Schorfheide-Chorin Biosphere Reserve]] ({{convert|1291|km2|sqmi|2|abbr=on|disp=or}})
*River Landscape Elbe-Brandenburg Biosphere Reserve ({{convert|533|km2|sqmi|0|abbr=on|disp=or}})

'''Nature parks'''
* [[Barnim Nature Park]] ({{convert|750|km2|sqmi|0|abbr=on|disp=or}})
* [[Dahme-Heideseen Nature Park]] ({{convert|594|km2|sqmi|0|abbr=on|disp=or}})
* [[High Fläming Nature Park]] ({{convert|827|km2|sqmi|0|abbr=on|disp=or}})
* [[Märkische Schweiz Nature Park]] ({{convert|204|km2|sqmi|0|abbr=on|disp=or}})
* [[Niederlausitzer Heidelandschaft]] Nature Park ({{convert|490|km2|sqmi|0|abbr=on|disp=or}})
* [[Niederlausitzer Landrücken Nature Park]] ({{convert|580|km2|sqmi|0|abbr=on|disp=or}})
* [[Nuthe-Nieplitz Nature Park]] ({{convert|623|km2|sqmi|0|abbr=on|disp=or}})
* [[Schlaube Valley Nature Parke]] ({{convert|225|km2|sqmi|0|abbr=on|disp=or}})
* [[Uckermark Lakes Nature Park]] ({{convert|895|km2|sqmi|0|abbr=on|disp=or}})
* [[Westhavelland Nature Park]] ({{convert|1315|km2|sqmi|2|abbr=on|disp=or}})
* [[Stechlin-Ruppiner Land Nature Park]] ({{convert|1080|km2|sqmi|2|abbr=on|disp=or}})