閉山 へいざん
heizan

Noun
Suru Verb

1. ending the climbing season; closure of a mountain to climbers

Transitive
Noun
Suru Verb

2. closing a mine; discontinuation of mining

Transitive
この鉱山 こうざん来月 らいげつ閉山 へいざんになる。
kono kōzanwa raigetsu hēzanni naru.
This mine will close down next month.