Dolores Airport

The airport was not closed in the sense of abandonment, but rather converted for exclusive military use. The Mexican Secretariat of National Defense (SEDENA) took over the site to construct a new military air base as part of a broader strategy to combat organized crime and enhance security in northeastern Mexico. The civilian designation MX-0521 was effectively retired upon its conversion.

The site is now the fully operational Base Aérea Militar No. 14 'General de División Alfredo Lezama Álvarez' (BAM-14), a key installation for the Mexican Air Force (Fuerza Aérea Mexicana). Inaugurated in 2014, the base is a critical hub for surveillance, reconnaissance, and rapid response operations in the states of Nuevo León and Tamaulipas. It primarily houses helicopter squadrons (such as Bell 212/412s) and supports various security and law enforcement operations in the region. The infrastructure has been significantly upgraded from the original airstrip to include modern hangars, barracks, command facilities, and a well-maintained runway.

Prior to its military conversion, Dolores Airport (Campo Aéreo Dolores) was a small, private/general aviation airfield. It primarily served local agricultural operations (e.g., crop dusting), private charter flights for local businesses and ranches, and general aviation enthusiasts. It did not handle any scheduled commercial passenger or cargo traffic. Its historical significance is mainly local, serving as a basic air transport link for the rural municipality of General Teran before its strategic importance was recognized by the military.

There are no prospects for reopening the airport to public or civilian use. As an active and strategic military air base, its function is exclusively dedicated to the Mexican Armed Forces. It is integral to national security operations in the region, and it is highly unlikely to be decommissioned or revert to civilian status in the foreseeable future.