The aim of the research was to establish vertical movements in the Warsaw region and surrounding regions, based on measurements of the 1^st class national precision leveling network, conducted as part of the 2^nd, 3^rd and 4^th leveling campaigns. As the examined fragment of the national leveling network is not a networked linked directly with any level of reference, the indicated vertical movement values are relative in nature and describe only structure deformations [Grzepkowski, Cacoń 2003]. The boundaries of the region, with a span of approx. 100 km, were the leveling lines of the towns of Sochaczew, Wyszogród, Płońsk, Pułtusk, Wyszków, Niegów, Mińsk Mazowiecki, Stara Wieś, Góra Kalwaria, Grójec and Mszczonów. The paper includes an outline of source materials, algorithms and results of the reference point database search as well as a summary of the interpretation of the causes of vertical movements. The technogenic causes of height changes are a dominating factor, but other attempts of interpretation in geological context is also presented. Computed vertical movements are presented in comparison with types of leveling benchmarks stabilization.

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