This paper presents the results of a comparative study of both field and laboratory measurements of the geotechnical properties of a very dense glacial till. This study was carried out to determine the feasibility of founding the major structures of a thermal generating station complex on very dense till. In situ pressuremeter tests, vertical and lateral plate load tests, and in situ shear box tests were carried out. A comparative laboratory test program on soil specimens from undisturbed block samples consisted of drained and undrained triaxial compression tests including a number of K0 and stress path tests. Foundation design parameters obtained from pressuremeter tests were in good agreement with the plate load test values. Laboratory test values underestimate the strength and deformation modulus of the dense till. The factors which influence the differences in the field and laboratory values of the strength and deformation properties of the till are discussed.