The mountain path becomes steeper and steeper as you go up.

山路愈走愈陡。

《新英汉大辞典》

The mountain path descends to the lake.

山路下斜通向湖边。

youdao

The mountain path is narrow and rugged.

狭隘的山路崎岖不平。

youdao

The team was to create the first map of the area and find a possible path to the top of the great mountain.

VOA: special.2010.06.30

Mr Williams is accused of driving up the mountain along a public path and the mountain railway track on 3 September 2011, and again later that month.

BBC: Snowdon 4x4 case goes ahead without accused Craig Williams

Six of the recycled stone pillars marking the main paths up the mountain - Llanberis Path, Rhyd-Ddu Path, Snowdon Ranger Path, Miners Track and the Pyg Track - are being erected over the next few weeks.

BBC: Snowdon: Pillars to guide walkers on paths

And I can still remember winding up the path up a mountain to his home.

WHITEHOUSE: Remarks by the President at the National Prayer Breakfast