Sag Valley Forest Preserve has 1 named peak. The highest is Swallow Cliffs at 217 m.
There are 1 named mountains in Sag Valley Forest Preserve. The highest and the most prominent mountain is Swallow Cliffs.
The highest peak in Sag Valley Forest Preserve is Swallow Cliffs, at 217 m.
Notable peaks in Sag Valley Forest Preserve include Swallow Cliffs.
