This Lake is know as Lago General Carrerra in Chile and Lago Buenos Aires in Argentina. It straddles the border between the two countries and is a pristine location because it is relatively unaccessible to the typical tourist. The road which circles the lake is challenging riding due to steepness and road surface. 'Improving' a dirt road by dumping apple-sized gravel on it typical. Slide 6 features the same lake and caption.