Lyman Hill (4280+F, 3400P) from the south from the road to Gilligan's Island on September 12, 2004. Gilligan's Island is where one finds "Silo Mountain" (Pk 4150, 2430P). Silo is the highest point on Gilligan's Island. It's called Gilligan's Island because there's a Gilligan Creek that drains from it.