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The IceCube Neutrino Observatory at the South Pole is a multi-componentdetector capable of measuring the cosmic ray energy spectrum and compositionfrom PeV to EeV, the energy region typically thought to cover the transitionfrom galactic to extragalactic sources of cosmic rays. The IceTop array at thesurface is sensitive to the electromagnetic part of the air shower while thedeep in-ice array detects the high-energy (TeV) muonic component of airshowers. IceTop's reconstructed shower size parameter, S$_{125}$, is unfoldedinto a high statistics all-particle energy spectrum. Furthermore, for airshowers that pass through both arrays, the in-ice reconstructed muon energyloss information is combined with S$_{125}$ in a machine learning algorithm tosimultaneously extract both the all-particle energy spectrum and individualspectra for elemental groups. The all-particle spectra as well as spectra forindividual elemental groups are presented.

Cosmic Ray Spectrum and Composition from PeV to EeV from the IceCube Neutrino Observatory