The wye with the coordinates shown for Ararat is actually north of Lanesboro, PA, at the north end of the grade up to Ararat Summit. There was no wye at Ararat proper.
The wye north of Lanesboro was named Cascade Wye, which was the origin of the symbol for KY Cabin at the north end of the double track from there south to LS Cabin at Lanesboro under the Erie Bridge.
The wye at Afton was named Grovers' Wye, which was the origin of the symbol for GR Cabin, the north end of double track from Afton south to VI Cabin at Harpursville.
Before and during the operation of the J-95 class 4-6-6-4 locomotives numbered in the 1500's (which were never called "Challengers" on the D&H during their lifespan), the D&H used H class 0-8-8-0 locomotives in the 1200's as well as all sorts of E class 2-8-0's in helper service. The 1200's mainly operated out of Carbondale and Binghamton.
Gordon Davids