Why is it logical that granada was the last Muslim stronghold?

Granada was the last Muslim stronghold in Spain due to its strategic location and the political fragmentation of the Islamic kingdoms in the region. It became a refuge for the Nasrid dynasty, which capitalized on its mountainous terrain and fertile lands, allowing it to thrive even as other Muslim territories fell to Christian reconquest. The city also benefited from a rich cultural and economic life, making it a resilient bastion until the Catholic Monarchs finally captured it in 1492. This culmination of military, political, and cultural factors made Granada the final holdout of Muslim rule in the Iberian Peninsula.