Schetskaart van den weg uit de Minahassa naar Bolaang Mongondou, gevolgd door J.Alb. Schwarz en A. de Lange, in 1875
1876
Indonesia
A map of a route taken by the Dutch Christian missionary Johannes Albert Traugott Schwarz. Over four days, accompanied by Anton de Lange, he walked from Popo (Poopo) south through the Minahasa Peninsula. The map also shows an earlier aborted route.
