Ecker
River in Germany
title: "Ecker" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["rivers-of-lower-saxony", "rivers-of-saxony-anhalt", "rivers-of-the-harz", "rivers-of-germany"] description: "River in Germany" topic_path: "geography/germany" source: "https://en.wikipedia.org/wiki/Ecker" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary River in Germany ::
::data[format=table title="Infobox river"]
| Field | Value |
|---|---|
| name | Ecker |
| subdivision_type1 | Country |
| subdivision_name1 | Germany |
| subdivision_type2 | States |
| subdivision_name2 | Saxony-Anhalt and Lower Saxony |
| length_km | 28.0 |
| length_ref | |
| source1_location | Eckersprung: Southwest of the Brocken in the Harz |
| source1_coordinates | |
| source1_elevation | |
| mouth_location | North of into the Oker |
| mouth_coordinates | |
| mouth_elevation | |
| basin_landmarks | |
| progression | |
| basin_size_km2 | 76.1 |
| basin_size_ref | |
| tributaries_right | Morgenbrodsbach, Großer Giersbach |
| tributaries_left | Abbe, Fuhler Lohnbach, Blaubach, Schamlahbach |
| waterbodies | Reservoirs: Ecker Reservoir |
| custom_label | References |
| :: |
| name = Ecker | map = | map_size = | map_caption = | image = | image_size = | image_caption = | subdivision_type1 = Country | subdivision_name1 = Germany | subdivision_type2 = States | subdivision_name2 = Saxony-Anhalt and Lower Saxony | subdivision_type3 = | subdivision_name3 = | length_km = 28.0 | length_ref = | width_avg = | depth_avg = | source1_location = Eckersprung: Southwest of the Brocken in the Harz | source1_coordinates = | source1_elevation = | mouth_location = North of into the Oker | mouth_coordinates = | mouth_elevation = | basin_population = | basin_landmarks = | progression = | basin_size_km2 = 76.1 | basin_size_ref = | discharge1_location = | discharge1_min = | discharge1_avg = | discharge1_max = | tributaries_right = Morgenbrodsbach, Großer Giersbach | tributaries_left = Abbe, Fuhler Lohnbach, Blaubach, Schamlahbach | waterbodies = Reservoirs: Ecker Reservoir | ports = | bridges = | custom_label = References | custom_data = | extra =
The Ecker is a 28 km, right-hand, southeast tributary of the Oker which runs mainly through the Harz mountains in the German states of Saxony-Anhalt and Lower Saxony.
Course
From its source to Abbenrode the Ecker is a border river, today running between the federal states of Saxony-Anhalt and Lower Saxony. Prior to German reunification this was also the border between the German Democratic Republic in the east and Federal Republic of Germany to the west.
::figure[src="https://upload.wikimedia.org/wikipedia/commons/5/5f/PappenfabrikEckertal.jpg" caption="Cardboard factory in the upper Ecker valley"] ::
The Ecker rises around 2.5 km southwest of the Brocken at at the Eckersprung. Until the border was reopened it was the end of the Goethe Way (Goetheweg) from Torfhaus. Today there is a large picnic area with toilets at the Eckersprung.
Along a steep, rocky bed, the Ecker initially flows to the Ecker Dam, then through the deeply incised Ecker valley towards the north-northeast, where it passes the Ahlsburg, and then leaves the Harz. The upper Ecker valley is part of the Harz National Park. Only the site of the paper factory, located there since the 19th century, was excluded.
Next, the Ecker runs via Stapelburg to Abbenrode (a Nordharz district) before emptying later into the Oker, a tributary of the Aller, just north of (a Vienenburg district) on the A 395 motorway at about . Before Wiedelah some of the water is diverted as the Ecker Ditch (Eckergraben) and only feeds back into the Oker 10 km north of Schladen.
References
::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::