Results are reported on the measurement of the atmospheric neutrino-induced muon flux at a depth of 2 kilometers below the Earth's surface from 1229 days of operation of the Sudbury Neutrino Observatory (SNO). By measuring the flux of through-going muons as a function of zenith angle, the SNO experiment can distinguish between the oscillated and un-oscillated portion of the neutrino flux. A total of 514 muon-like events are measured between −1≤cosθzenith≤0.4 in a total exposure of 2.30\times 10^{14}cm^{2}s.Themeasuredfluxnormalizationis1.22 \pm 0.09timestheBartolthree−dimensionalfluxprediction.Thisisthefirstmeasurementoftheneutrino−inducedfluxwhereneutrinooscillationsareminimized.Thezenithdistributionisconsistentwithpreviouslymeasuredatmosphericneutrinooscillationparameters.ThecosmicraymuonfluxatSNOwithzenithangle\cos{\theta}_{\rm zenith} > 0.4ismeasuredtobe(3.31 \pm 0.01 {\rm (stat.)} \pm 0.09 {\rm (sys.)}) \times 10^{-10}~\mu/s/cm^{2}$.