Lax̱g̱altsʼap /læxˈɑːldzæp/ (also Laxqaltsʼap, and formerly Lachkaltsap[2]) is a Nisg̱a’a village of approximately 248,[3] in the Nass River valley of British Columbia, Canada.

It is one of the four main villages in the Nisg̱a’a Lisims, the formal name for their territory, and is situated on the north side of the Nass River between Gitwinksihlkw to the east and Ging̱olx to the west.

/ˈɡrɛnvɪl/ GREN-vil)[6] from Methodist Missionary Alfred Green, who was based here in the late 19th century.

[7] Until reconstituted as a Nisg̱a’a Village in 2000 by the terms of the Nisga'a Treaty, Lax̱g̱altsʼap was formerly Lachkaltsap Indian Reserve No.

[8] The Nisg̱a’a Museum is the Nisg̱a’a people's primary place for display of Nisg̱a’a artifacts, sharing traditions and ideas, and a centre for research and learning.