1. A geographical area where historical documentation, administrative records, or official data is scarce, incomplete, or poorly preserved
The remote mountain region with limited records has made genealogical research extremely difficult.
A região montanhosa remota com registros limitados tornou a pesquisa genealógica extremamente difícil.
2. An area lacking comprehensive historical archives or official documentation for a specific period
This is a region with limited records from the colonial period, making it challenging for historians.
Esta é uma região com registros limitados do período colonial, tornando-a desafiadora para historiadores.