Most of the border crossings into Argentina are via Chile or Brazil. There are also border crossings with Bolivia, Paraguay and Uruguay. There are not many crossings available with public transportation from Chile or Bolivia to Argentina, though there is a significant amount along more heavily traveled Brazilian, Paraguayan and Uruguayan routes.

PATAGONIA BORDER CROSSINGS

There are buses from Temuco to Neuquén that traverse the Paso de Pino Hachado via Curacautín and Lonquimay, while there is also regular bus service from Temuco San Martín de los Andes along the Paso de Mamuil Malal.

Along Paso Huahum and Lago Pirehueico, an available option is the bus/ferry from Panguipulli to San Martín. Or travel the popular crossing along the paved highway from Orsono to Bariloche via the Paso de Cardenal Samoré. There is also a bus/boat shuttle from Puerto Montt/Puerto Varas to Bariloche. The further south into Patagonia a traveler ventures increases the likelihood of bad roads such as the one comprised of gravel from Futaleufú to Esquel that caters to local buses. There is a mostly paved highway from Coyhaique to Comodoro Rivadavia. Puerto Natales to El Calafate (via Río Turbio) is an available option, as is Punta Arenas to Ushuaia and Río Grande.

CROSSING AT THE TRIPLE FRONTERA

One of the most popular crossing spots into Argentina is found along the Triple Frontera near Las Cataratas. This is where Argentina meets with Paraguay and Brazil in the Misiones Province. There is a bridge that leads from Puerto Iguazú, Argentina, to Foz de Iguacu, Brazil. As well as several river crossings, there are two bridges over the Uruguay River in the Corrientes Province that connects Santo Tomé and Sao Borja, and Paso de los Libres to Uruguaiana, Brazil.

CROSSING OVER THE URUGUAY RIVER

There are three highway bridges over the Uruguay River that connects Argentina and Uruguay. These are found between Gualeguaychú and Fray Bentos, Colón and Paysandú and Concordia and Salto.