can someone help me with a map for a quest?

Not knowing which kind of map

http://srmap.uesp.net/?centeron=Forelhost

https://www.google.com/search?q=skyrim+map+of+forelhost&rlz=1CAACAC_enUS652&espv=2&biw=1366&bih=657&tbm=isch&imgil=xrxMaapHR_BmYM%253A%253BOEwghjy20PH1jM%253Bhttp%25253A%25252F%25252Fwww.giannipc.com%25252Fjosh%25252Fguide%25252F2-87.htm&source=iu&pf=m&fir=xrxMaapHR_BmYM%253A%252COEwghjy20PH1jM%252C_&usg=__77JzBwa7TnPkDJC40cjc6QckUKU%3D&ved=0CDQQyjdqFQoTCL-XsZnS8ccCFYgQkgodCrUPtA&ei=BC70Vb-FH4ihyASK6r6gCw#imgrc=xrxMaapHR_BmYM%3A&usg=__77JzBwa7TnPkDJC40cjc6QckUKU%3D the 1st image is only part of the dungeon, you'll have to look at some of the other images.

thanks

and I have one more question. where do I find shell bug chitin?

• http://elderscrolls.wikia.com/wiki/Forgotten_Vale_Cave, in a hidden chamber.
• http://elderscrolls.wikia.com/wiki/Sharpslope_Cave, in a side chamber.

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Forgotten Vale Cave
Behind a hidden door that can be accessed by pulling a rope found at the top of a ramp in the main chamber.

Sharpslope Cave
This one is hidden exceptionally well. A small gap in the wall near the top of the spiral slope, under three Giant Mushrooms leads to the Shellbug.