:I've found some mentions that don't make it quite clear if that's really the name of the river, or if they simply talk about "the river next to Khogorog".  But with such thin data, I see no point in listing it at the moment. Note that "Хогорог гол" (with quotes) gives zero google hits. Of course, if you (or anyone) come across better information, feel free... 
 :Btw: The mentions I've seen make it quite clear that the Khogorog settlement is north-east of the lake, while the rivulet at your (last) coordinates arrives from the south out of the "West Taiga". Something doesn't add up there.