Zellerrain Pass (elevation 1,125 m, 3,691 ft) is a

mountain pass A mountain pass is a navigable route through a mountain range or over a ridge. Since many of the world's mountain ranges have presented formidable barriers to travel, passes have played a key role in trade, war, and both Human migration, human a ...

in the

Ybbstal Alps The Ybbstal Alps (german: Ybbstaler Alpen) are a mountain range of the Northern Limestone Alps and part of the Eastern Alps, located in Austria. They occupy an area along the borders of the states of Upper Austria, Lower Austria and Styria. The r ...

, located on border between

Lower Austria Lower Austria (german: Niederösterreich; Austro-Bavarian: ''Niedaöstareich'', ''Niedaestareich'') is one of the nine states of Austria, located in the northeastern corner of the country. Since 1986, the capital of Lower Austria has been Sankt P ...

and

Styria Styria (german: Steiermark ; Serbo-Croatian and sl, ; hu, Stájerország) is a state (''Bundesland'') in the southeast of Austria. With an area of , Styria is the second largest state of Austria, after Lower Austria. Styria is bordered to ...

, west of

Mariazell Mariazell (Central Bavarian: ''Mariazöö'') is an Austrian city in the southeastern state of Styria. Well known for being a hub of winter sports and a pilgrimage destination, it is located north of Graz. It is picturesquely situated in the valle ...

. The pass road has a steep grade of up to 22 percent. The river

Ybbs Ybbs () is a river in Lower Austria. Its drainage basin is . Its source is located on the Zellerrain Pass near Mariazell. In the beginning, the river is called , then onwards from the border between Lower Austria and Styria up to Lunz am See it i ...

has its source at the pass.

See also