The given map shows Bharmaur Tribal Region. Answer the question that follows:

Which of the following statements is correct about Bharmaur tribal areas in the Himalayan region?

All of the above.

Bharmaur tribal area comprises Bharmaur and Holi tehsils of the Chamba district of Himachal Pradesh. It is a notified tribal area since 21 November 1975. Bharmaur is inhabited by ‘Gaddi’, a tribal community who have maintained a distinct identity in the Himalayan region as they practised transhumance and conversed through the Gaddiali dialect.

Bharmaur tribal region has harsh climate conditions, a low resource base and a fragile environment. These factors have influenced the society and Economy of the region. According to the 2011 census, the total population of the Bharmaur sub-division was 39,113 i.e., 21 persons per sq km. It is one of the most (economically and socially) backward areas of Himachal Pradesh. Historically, the Gaddis have experienced geographical and political isolation and socio-economic deprivation. The economy is largely based on agriculture and allied activities such as sheep and goat rearing.