Comprising the Dasht-e Kavir and Dasht-e Lut, this basin spans a vast interior region that constrains large-scale settlement but creates defensible geographic structures.

Historically, desert barriers influenced the routes of empires, from Achaemenid logistics to Safavid and Qajar administrative planning. Settlements clustered around oases and trade routes.

The basin delineated political space in multiple historical eras, limiting invasion paths and influencing the placement of capitals and regional centres.

Though sparsely populated, the region hosts research sites, mineral extraction zones, and protected areas.