Shore displacement in the vicinity of Stockholm has been studied. The height of old trees and14C-datings of isolation levels in isolated lakes have been used for the calculations. Results from two earlier papers (Åse 1969 a and 1969 b) are also used for the construction of shore-displacement curves. The isolation of Lake Mälar from the Baltic is discussed. A few methods to make eustatical corrections in order to obtain land upheaval as pure as possible have been tried.