( ( On ( ( mountain peaks ) ( reaching ( over ( ( 10,000 feet ) high ) ) ) ) ) ( , ( you ( ( will ( find ( some ( of ( ( the ( best ( Alpine ( style skiing ) ) ) ) ( in ( the ( United States ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN On) (S (NP (NN mountain) (NNS peaks)) (VP (VBG reaching) (PP (IN over) (ADJP (NP (CD 10,000) (NNS feet)) (JJ high)))))) (, ,) (NP (PRP you)) (VP (MD will) (VP (VB find) (NP (NP (DT some)) (PP (IN of) (NP (NP (DT the) (JJS best) (JJ Alpine) (NN style) (NN skiing)) (PP (IN in) (NP (DT the) (NNP United) (NNPS States)))))))) (. .)))
On mountain peaks reaching over 10,000 feet high, you will find some of the best Alpine style skiing in the United States.
(ROOT (S (NP (NNS Scientists)) (VP (VBP know) (SBAR (IN that) (S (NP (DT some) (NNS mountains)) (VP (VBD were) (ADVP (RB once)) (PP (IN at) (NP (NP (DT the) (NN bottom)) (PP (IN of) (NP (DT an) (NN ocean))))) (SBAR (IN because) (S (NP (JJ marine) (NNS fossils)) (VP (VBP have) (VP (VBN been) (VP (VBN found) (PP (IN on) (NP (NP (DT the) (NNS peaks)) (PP (IN of) (NP (DT some) (NNS mountains)))))))))))))) (. .)))