For 10 points, name this wetland terrain consisting of peat.
The "string" kind of this landform, which is found at Salym-Yugan, contains a form of patterned vegetation. More common types include "raised" and "valley." Much of the water in these regions is colored by tannins, and is acidic. (*) Muskeg is the Cree term used for an extensive region of this terrain around Hudson Bay, and it is most prevalent in western Siberia. Sphagnum moss characterizes this terrain that is differentiated from alkaline  ► fens because they receive water entirely from rainfall. For 10 points, name this wetland terrain consisting of peat.
The "string" kind of this landform, which is found at Salym-Yugan, contains a form of patterned vegetation.
bog [accept muskeg before read; accept peatland before read; prompt on "mire" or "quagmire" before read; prompt on "wetlands" or "moors" or similar answers]