ふもとfumoto
1.

The lower part or base of a mountain, where the slope meets the surrounding land.

2.

The area at the foot of a mountain, often characterized by a transition from mountainous terrain to flat land.

3.

The region encompassing the base of a hill or mountain, typically where vegetation and human settlements can be found.

Example:

山の麓に日が昇るが早いかただ一人山を登り始めた。

さんろく山麓sanrokuさんsanろくroku
1.

The lower slopes or base area of a mountain where it transitions to the surrounding land.

2.

The region at the foot of a mountain characterized by a gradient of elevation leading up to the mountain itself.

3.

The area surrounding the base of a mountain that may include clearings, pastures, or forested land.