In 1959 he retired from politics and diplomacy and move back to live in the tropical forests of the San Juan River, in the border of Nicaragua and Costa Rica, where his wife grew up and where they both lived for the rest of their lives and were buried. That same year Coronel Urtecho started to write about the history of Nicaragua, and became a strong critic of the Somoza administrations, which had ruled Nicaragua since 1934 with his own, and his Vanguardists friends´ support.