Mussoorie, July 8 -- Heavy rain continued to lash several parts of Uttarakhand on Monday, triggering landslides and boulder falls that blocked over 70 roads across the state. The Geological Survey of India (GSI), meanwhile, has issued a landslide warning for four districts - Uttarkashi, Rudraprayag, Chamoli, and Tehri - forecasting the possibility of landslides on July 7 and 8. According to the state emergency operation centre in Dehradun, Chamoli district reported the highest number of road closures with 23 blocked roads, followed by Bageshwar with 13. Pithoragarh and Rudraprayag reported seven closures each, Tehri had six blocked roads, and Dehradun, Pauri, and Uttarkashi reported five each. One road was closed in Almora. Of the 70 roads blocked, 23 fall under the Public Works Department and 42 under the Pradhan Mantri Gram Sadak Yojana and Rural Works Department. Pradeep Mohan Goswami, additional secretary of disaster management, in a letter to all departments, said, "According GSI warning, all departments in Uttarkashi, Rudraprayag, Chamoli, and Tehri districts are urged to remain alert, particularly on pilgrimage routes and especially in landslide-prone areas." In Uttarkashi, search operations are going on for two goat herders who were swept away in the Jalendri Gad stream near Kyarkoti in Bhatwari tehsil on Saturday evening. "Search teams have been deployed and efforts are underway, but no trace of the missing individuals has been found so far," said Shardul Gusain, district disaster management officer. The IMD has forecast over 50 mm of rainfall across all districts over the next six days....