The perturbed angular correlation (PAC) technique was used to study the hyperfine interactions in the antiferromagnetic and paramagnetic regions of the distorted perovskites LaCrO 3 and LaFeO 3. The dilute 111 In→ 111 Cd nuclear probes were introduced into the samples through a chemical process. The present measurements cover the temperature ranges from 15 to 848 K for LaCrO 3 and 77 to 1324 K for LaFeO 3. Two distinct electric-quadrupole interactions were observed in each compound. The lower quadrupole frequency was assigned to the transition-metal atom site while the higher frequency was attributed to the lanthanum site in both cases. Temperature dependence of the electric-quadrupole interaction parameters indicated structural phase transitions at around 512 and 1223 K, respectively, in LaCrO 3 and LaFeO 3. The phase transitions were associated with the change from an orthorhombic to rhombohedral structure and characterized by a sudden increase in the electric field gradient V zz and a decrease in the asymmetry parameter η for both sites. PAC spectra measured below the Néel temperature revealed that at 0 K the supertransferred magnetic hyperfine field on 111 Cd at the Cr site in LaCrO 3 (2.4 T) is much smaller than at the Fe site in LaFeO 3 (19.4 T). The magnetic field on 111 Cd at La sites in both compounds is of the order of 0.3 T. Additional measurements were made to determine the magnetic hyperfine field using the probe nucleus 140 La→ 140 Ce. The result reconfirmed that a relatively weak hyperfine field is supertransferred to the probe atoms at La sites.