  2 0 ), ▁where ▁the ▁rail ro ads ▁merged , ▁and ▁beyond ▁to ▁O lean ▁( ex its ▁ 2 5 ▁and ▁ 2 6 ). ▁From ▁Sal aman ca ▁to ▁O lean , ▁the ▁old ▁NY   1 7 ▁is ▁now ▁NY   4 1 7 . ▁At ▁O lean , ▁the ▁Al leg hen y ▁River ▁and ▁NY   4 1 7 ▁( old ▁NY   1 7 ) ▁continue ▁sout heast , ▁while ▁I - 8 6 ▁and ▁the ▁Er ie ▁Rail road ▁head ▁n ortheast . ▁NY   4 1 7 ▁does ▁not ▁return ▁to ▁I - 8 6 ▁until ▁exit   4 4 ▁near ▁P aint ed ▁Post , ▁and ▁the ▁Er ie ▁switch es ▁between ▁the ▁two ▁align ments ▁several ▁times . ▁ ▁O lean ▁to ▁El mi ra ▁I - 8 6 ▁and ▁the ▁old ▁Er ie ▁line ▁( now ▁part ▁of ▁the ▁Western ▁New ▁York ▁and ▁Pennsylvania ▁Rail road ) ▁run ▁n ortheast ▁along ▁the ▁valle ys ▁of ▁the ▁O lean ▁Creek ▁and ▁O il ▁Creek ▁to ▁Cuba ▁( exit   2 8 ). ▁From ▁Cuba ▁to ▁Friend ship ▁( exit   2 9 ), ▁they ▁run ▁through ▁a ▁valley ▁and ▁over ▁a ▁sum mit , ▁then ▁following ▁the ▁Van ▁Camp en ▁Creek ▁n ortheast ▁to ▁Bel vid ere ▁( exit   3 0 ). ▁At ▁Bel vid ere , ▁the ▁Er ie ▁turns ▁sout heast ▁to ▁meet ▁NY   4 1 7 ▁at ▁Well sv ille , ▁but ▁I - 8 6 ▁continues