| Platißbach | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | North Rhine-Westphalia |
| Subdivision Type3: | Location |
| Subdivision Name3: | Eifel, District of Euskirchen |
| Subdivision Type4: | Reference no. |
| Subdivision Name4: | DE: 282284 |
| Source1 Location: | northwest of Hollerath |
| Source1 Coordinates: | 50.4664°N 6.3688°W |
| Source1 Elevation: | ca. |
| Mouth Location: | in Hellenthal into the Olef |
| Mouth Coordinates: | 50.4917°N 6.4383°W |
| Mouth Elevation: | ca. |
| Progression: | Olef→ |
| Custom Label: | References |
The Platißbach is a roughly 7km (04miles), southern and orographically right-hand tributary of the River Olef in the municipality of Hellenthal in Germany.
The Platißbach rises in the High Fens-Eifel Nature Park in the North Eifel natural region of the Hollerath Plateau. Its source lies about northwest of the village of Hollerath and 1km (01miles) north of the Belgian border at a height of about 605 m.
The Platißbach initially flows in a northern direction. After about 1km (01miles) it collects an unnamed stream from the left and changes direction to head east. On reaching the B 265 it changes course again and flows parallel to the road in a northwesterly direction to its mouth. On its way it flows through the Platißbach Valley Nature Reserve. The Platißbach picks up other tributaries from both sides, near (a district of Hellenthal), the only village it passes, at a height of about 422 m, it is joined by its main tributary, the . In Hellenthal it empties into the Urft tributary, the Olef, at about 403 m.
The catchment of the Platißbachs is in area and drains over the Olef, Urft, Rur, Meuse and Hollands Diep into the North Sea.
| Name | Left/right tributary | Length [km] | Catchment [km²] | Distance from mouth [km] | GKZ | |
|---|---|---|---|---|---|---|
| Kaisersiefen | right | 0.5 | 5.4 | 282284-112 | ||
| Eschsiefen | right | 2.4 | 4.6 | 282284-12 | ||
| Langersiefen | right | 2.1 | 4.1 | 282284-14 | ||
| Kammersiefen | left | 1.1 | 3.8 | 282284-16 | ||
| Mehlensiefen | left | 1.0 | 3.5 | 28228418 | ||
| Prether Bach | right | 10.2 | 24.893 | 2.1 | 282284-2 | |
| Drees Bach | right | 1.6 | 1.1 | 282284-94 | ||
| Speissiefen | left | 1.2 | 0.5 | 282284-96 |