lake house interior on the lake matthiessen state park illinois

abandoned access allow architecture area attracton boat boathouse branches building canhon canyon carve carved cave caverns columns construction covered creek dark decay dells derelict design fall falls feature features formation froze frozen geologic hiking historic house ice icicyle illinois inside interior lake line lower main matthiessen one opening park parks pov recreation river rock rocks roman room ruins scenery scenic snow state structure trail upper utica vermillion view water waterfall winter