A total of 41 selectively oriented single crystals of olivine (Fo92) were deformed under uniaxial stresses of 100-1800 bars in the temperature range 1150¿-1600¿C. Under uniform stress no strain inhomogeneities were observed. For all orientations both strain rate and dislocation structure stabilized after 1-2% strain and remained stable to the highest strains achieved (40%). For all orientations, creep could be represented by a power law of the form ?=A&sgr;3.6 where A varied with orientation by a factor of 50. Shape change and crystallographic rotation data for some orientations could only be accounted for by a substantial dislocation climb contribution to the strain rate. All speciments were decorated to show the dislocation structure.