Bolivia shares borders with five countries: Brazil to the north and east, Paraguay to the southeast, Argentina to the south, Chile to the southwest, and Peru to the northwest. The practical geography of these connections matters for overland travel. The border crossing at Desaguadero connects La Paz with Puno, Peru, providing access to the southern shore of Lake Titicaca. The Villazón-La Quiaca crossing links Potosí and southern Bolivia with Argentina's northwest provinces. San Matías on the Brazilian border serves as a gateway to the Pantanal wetlands. The crossing at Tambo Quemado connects Oruro with Arica, Chile, a Pacific port historically important to Bolivia's landlocked economy.
Peru shares the Altiplano geography, the Quechua and Aymara linguistic zones, and Lake Titicaca itself. Puno sits on the Peruvian shore directly across from Copacabana. Travelers moving between Cusco and La Paz typically pass through the lake region, visiting Isla del Sol on the Bolivian side and the floating Uros islands on the Peruvian side within days of each other. The administrative border runs through Lake Titicaca at approximately 3,812 meters elevation, though both nations claim certain islands under disputed historical agreements. Tiwanaku sits 72 kilometers from La Paz, while the comparable Inca site of Sacsayhuamán sits 2 kilometers from Cusco. Both countries contain extensive Yungas zones where the Andes descend toward the Amazon Basin, producing coca, coffee, and tropical fruit on steep forested slopes between 1,200 and 3,500 meters.
Chile represents the historical source of Bolivia's territorial grievance. Bolivia lost its coastal province of Litoral in the War of the Pacific from 1879 to 1884, becoming landlocked when Chile annexed the territory containing the ports of Antofagasta, Mejillones, and Cobija. Bolivia maintained no formal diplomatic relations with Chile from 1978 to 2020, though commercial transit continues through Chilean ports under a 1904 treaty. San Pedro de Atacama sits 200 kilometers west of Uyuni across the border, and many travelers combine the Salar de Uyuni with the Atacama Desert in single itineraries. Both destinations sit above 2,400 meters in similar high-desert environments. The Eduardo Avaroa Andean Fauna National Reserve borders Chile directly, and Laguna Verde sits on the frontier at 4,300 meters.
Argentina shares the southern Altiplano and the Chaco lowlands with Bolivia. The Tarija department borders the Argentine provinces of Salta and Jujuy, creating cultural continuity in wine production, colonial architecture, and festival traditions. The Quebrada de Humahuaca in Argentina extends the same multicolored sedimentary geology visible in Bolivia's Torotoro National Park. Salta sits 450 kilometers south of Tarija by paved highway. The Yacuiba-Pocitos crossing provides access to Argentina's northwest from Santa Cruz, while the Villazón-La Quiaca crossing connects Potosí with the Jujuy region. Both countries share portions of the Gran Chaco, a semi-arid lowland extending east from the Andes foothills, though Bolivia's portion receives more rainfall than Argentina's Santiago del Estero region.
Brazil borders Bolivia along a 3,403-kilometer frontier, the longest of Bolivia's five international boundaries. The Pantanal wetlands extend from Brazil's Mato Grosso and Mato Grosso do Sul states into Bolivia's Santa Cruz department, creating ecological continuity across the border. Puerto Suárez on the Bolivian side sits opposite Corumbá, Brazil, providing the primary crossing for travel between Santa Cruz and São Paulo. The Noel Kempff Mercado National Park in northeastern Bolivia borders Brazil's Rondônia state, sharing the Huanchaca Plateau, a sandstone formation rising to 600 meters above the surrounding forest at approximately 14 degrees south latitude. Both countries contain portions of the Amazon Basin, though Brazil's tributaries flow northward toward the main Amazon channel while Bolivia's flow generally northeast through the Beni and Mamoré systems.
Paraguay shares the Chaco region with Bolivia in a zone that saw armed conflict during the Chaco War from 1932 to 1935. Bolivia lost approximately 234,000 square kilometers of territory to Paraguay in the 1938 peace settlement, establishing the current border. The Pilcomayo River forms portions of the boundary between the two countries before flowing into Argentina. Both nations remain landlocked, a distinction Paraguay accepted in the War of the Triple Alliance from 1864 to 1870 when it lost access to the Atlantic through Brazilian territory. The climate and vegetation of the Chaco create harsh conditions on both sides of the border, with summer temperatures exceeding 45 degrees Celsius and sparse water sources. The crossing at Infante Rivarola connects Villamontes, Bolivia, with Mariscal Estigarribia, Paraguay, through a region of thorn forest and seasonal wetlands.
Within South America, destinations comparable to Bolivia's highland geography include Ecuador's Avenue of the Volcanoes between Quito and Cuenca, where the páramo ecosystem exists above 3,200 meters, and northern Argentina's Puna de Atacama, a high plateau at similar elevations to Bolivia's Altiplano. Ecuador's Quilotoa crater lake sits at 3,914 meters, approximately 900 meters higher than Colombia's highest lakes but 100 meters lower than Lake Titicaca. Peru's Colca Canyon reaches depths of 3,270 meters, while Bolivia's Torotoro canyons reach approximately 300 meters in depth but contain extensive dinosaur trackways that Colca lacks. The páramo vegetation zones of Colombia and Ecuador transition to forest at lower elevations than Bolivia's Altiplano, where the puna grasslands extend from approximately 3,800 to 4,800 meters before reaching permanent snow.
The salt flat geography of Salar de Uyuni has limited global comparisons. Argentina's Salinas Grandes covers approximately 212 square kilometers at 3,450 meters elevation in Jujuy and Salta provinces, roughly 47 times smaller than Uyuni's 10,582 square kilometers. Chile's Salar de Atacama covers about 3,000 square kilometers at 2,300 meters elevation and contains significant lithium deposits similar to Uyuni, but it sits in a lower, warmer climate zone. The Salar de Arizaro in Argentina covers approximately 1,600 square kilometers at 3,660 meters, making it the second-largest salt flat in South America after Uyuni. None of these approach Uyuni's combination of size, elevation at 3,656 meters, flatness measured at less than 1 meter variation across the entire surface, and the seasonal flooding that creates the reflective surface from December to March.
Bolivia's Amazon Basin territories share ecological characteristics with Peru's Madre de Dios department and Brazil's Acre state. Madidi National Park extends from 200 meters elevation in the lowlands to 6,000 meters at the snowline of the Cordillera Real, creating an elevation gradient matched only by Peru's Manu National Park, which spans from 300 to 4,200 meters. Ecuador's Yasuní National Park sits entirely in lowland rainforest below 400 meters, lacking the Andean transition zones present in both Madidi and Manu. The Beni savanna in northern Bolivia resembles the Llanos de Moxos historical wetland system, a landscape of seasonally flooded grasslands that extends across approximately 126,000 square kilometers, larger than Ecuador's total area but less studied than Brazil's Pantanal.