Review of investigations made by the author in the vincinety of Enschede and Losser in the eastern part of the Netherlands. Tectonic structure and stratigraphy of this area, situated in the region of the Lower Cretaceous folds, pressed against the east Netherland Trias swell, are very complicated. A number of hiatuses in the Hauterivian could be defined. The provenance of the pieces of Albertite in the conglomerates remains unsolved. Now fissures in the rock are filled with Calcite, now they are leached, through which different groundwater circumstances originate and serious drying up of the fiels may be the result.