  Residual flux and angular distribution of high-energy cosmic muons have been
measured in two underground locations at the Canfranc Underground Laboratory
(LSC) using a dedicated Muon Monitor. The instrument consists of three layers
of fast scintillation detector modules operating as 352 independent pixels. The
monitor has flux-defining area of 1 m${}^{2}$, covers all azimuth angles, and
zenith angles up to $80^\circ$. The measured integrated muon flux is $(5.26 \pm
0.21) \times 10^{-3}$ m${}^{-2}$s${}^{-1}$ in the Hall A of the LAB2400 and
$(4.29 \pm 0.17) \times 10^{-3}$ m${}^{-2}$s${}^{-1}$ in LAB2500. The angular
dependence is consistent with the known profile and rock density of the
surrounding mountains. In particular, there is a clear maximum in the flux
coming from the direction of the Rioseta valley.
