In this report, are presented U-Pb isotopic and electron beam imaging data from seven samples that were collected during the July-August 2017 MERN fieldwork campaign in the La Tuque area (Lac St-Jean), and from a sample of the Labelle shear zone that was collected along the highway 117. The U-Pb isotopic data were collected using Laser Ablation High Resolution Inductively Coupled Plasma Mass Spectrometry (LA-HR-ICP-MS: Photon-Machines G2 and Nu Attom instruments) and the imaging data using cathodoluminescence and backscatter electron microscopy (Hitachi S-3400N SEM/BSE-CL).