The Warren Hills region includes several small valleys formed by tributaries of the Delaware River.
The valleys drain from northeast to southwest, and most vineyards in the area are planted on southeast-facing hill slopes.
The region is primarily planted with French hybrid grapes.
[3] It has a hot-summer humid continental climate (Dfa) and is located in hardiness zones 6b and 7a.
(3) Then northwestward along that county line for about 10 miles to Paulins Kill.