Editing Lahn (section)

{{short description|Right tributary of Rhine river in Germany}}
{{Other uses}}
{{Use dmy dates|date=September 2023}}
{{Infobox river
 | name              = Lahn
 | image             = Verlaufskarte Lahn.png
 | image_size        =
 | image_caption     = Map of the Lahn from its source in the [[Rothaar Mountains|Rothaargebirge]] to its mouth near [[Koblenz]]
 | source1_location  = Near the Lahnhof in the municipality of [[Netphen]], North Rhine-Westphalia
 | source1_coordinates= {{coord|50|53|32|N|8|14|30|E|region:DE-NW}}
 | mouth_location    = [[Rhine]] at [[Lahnstein]],<br />[[Rhineland-Palatinate]]
 | mouth_coordinates = {{coord|50|18|32|N|7|35|42|E|region:DE-RP|display=inline,title}}
 | subdivision_type1 = Country
 | subdivision_name1 = Germany
 | length_km = 245.6
| source1_elevation = {{convert|602|m|ft|abbr=on}}
 | mouth_elevation   = {{convert|61|m|ft|abbr=on}}
 | discharge1_avg    = {{convert|54|m3/s|cuft/s|abbr=on}}
 | basin_size_km2 = 5925.6|basin_size_ref={{GeoQuelle|DE-RP|WW}}
 | progression       = {{RRhine}}
}}
{{Lahn RDT}}

The '''Lahn''' ({{IPA|de|laːn|-|De-Lahn.ogg}}) is a {{convert|245.6|km|mi|adj=mid|-long}}, right (or eastern) [[tributary]] of the [[Rhine]] in Germany. Its course passes through the [[States of Germany|federal states]] of [[North Rhine-Westphalia]] (23.0&nbsp;km), [[Hesse]] (165.6&nbsp;km), and [[Rhineland-Palatinate]] (57.0&nbsp;km).

It has its source in the [[Rothaar Mountains|Rothaargebirge]], the highest part of the [[Sauerland]], in North Rhine-Westphalia. The Lahn meets the [[Rhine]] at [[Lahnstein]], near [[Koblenz]]. Important cities along the Lahn include [[Marburg]], [[Gießen]], [[Wetzlar]], [[Limburg an der Lahn]], [[Weilburg]] and [[Bad Ems]].

Tributaries to the Lahn include the [[Ohm (river)|Ohm]], [[Dill (river)|Dill]], the [[Weil (river)|Weil]] and the [[Aar (Lahn)|Aar]]. The lower Lahn has many [[dams]] with [[Lock (water transport)|locks]], allowing regular shipping from its [[mouth (river)|mouth]] up to [[Runkel]]. Riverboats also operate on a small section north of the dam in Gießen.