After Grong Station, which is located  from Trondheim Central Station and  above mean sea level (AMSL), the line runs over Tømmeråsfoss on the  Sanddøla Bridge and then over the  Røttesdal Vidaduct. The line then runs past Dun Station ( from Grong Station), before Sjemsvoll Station () and Jørem Station ().
After departing from Grong Station, which is located  from Trondheim Central Station and  above mean sea level (AMSL), the route proceeds over Tømmeråsfoss on the Sanddøla Bridge and then crosses the Røttesdal Vidaduct. The line then travels to Dun Station (from Grong Station) before stopping at Sjemsvoll Station () and Jørem Station ().