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 a flux-defining area of 1~hbox {m}^{2} and 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}~hbox {m}^{-2}hbox {s}^{-1} in the Hall A of the LAB2400 and (4.29 ,pm , 0.17) times 10^{-3}~hbox {m}^{-2}hbox {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.