Relief efforts were difficult, as few roads existed in the isolated settlement.

Isolated settlements either built forts or were abandoned.

The constitutive groups live in isolated settlements in units of four to eight families dwelling in multifamily longhouses.

Many more people lived in smaller satellite settlements of 200 to 300 people each or in isolated settlements.

According to a popular theory, these traditions reduced the danger of inbreeding and resulting population bottleneck in small and isolated settlements.