Earth Sandwich / City antipodes / Wanzhou
Antipode finder · China
The antipode of
Wanzhou.
Draw a straight line from Wanzhou (30.76° N, 108.40° E) through the centre of the Earth and it comes out at 30.76° S, 71.60° W, on dry land in Chile, 34 km from Punitaqui. An exact Earth sandwich is possible.
- Wanzhou
- 30.76° N, 108.40° E · about 440 m above sea level · 1,545,900 people
- Antipode
- 30.76° S, 71.60° W
- What is there
- Dry land in Chile
- Nearest town
- Punitaqui, Chile · 34 km from the antipode
- Nearest big city
- Santiago · 313 km from the antipode
- Sandwich verdict
- EXACT land lies opposite land
- Elevation bonus
- +400 m (440 m here, -40 m there)
Can you make an Earth sandwich from Wanzhou?
Yes: an exact Earth sandwich. Wanzhou is one of the few large cities with dry land directly opposite it. The grid that verifies submissions rates the spot exact: put a slice down in Wanzhou and have a friend put one down 34 km from Punitaqui, Chile at the same UTC minute, and the whole planet is the filling. The elevation bonus would be about 400 m: Wanzhou sits about 440 m above sea level and the other slice at about sea level.
How this was worked out: the antipode flips the latitude and moves the longitude by 180°. Land or sea comes from the OpenStreetMap coastline the map uses; the sandwich verdict and elevations come from the verifier's 0.2° grid (Natural Earth land, ETOPO 2022 relief); water names from Natural Earth; towns and populations from GeoNames. The city's position is GeoNames' point for it; a big city's suburbs spread tens of kilometres around that point, and the figures move with them. Generated 2026-09-29.