Stephen's Gulch is a conservation area located in the municipality of Clarington, Ontario. The conservation area borders a large section of the Soper Creek, and contains 354 acres of deciduous forests as well as coniferous forests and swamps.^[1] The conservation area is also an important watershed area for Ontario.

Stephen's Gulch has a humid continental climate^[3] with long, cold winters and hot summers. During winters temperatures can drop below -10 °C and can exceed 20 °C during summers.^[4] Rainfall averages 1093 mm per year, with late summer/early fall being the wettest months and winter the driest.

Stephen's Gulch is mostly underlain by the Precambrian-era metamorphic and igneous rock of the Canadian Shield.^[5] Soils in the conservation area are mostly fine and high-quality, and average high levels of infiltration.^[6]

There are a wide variety of animals that live in Stephen's Gulch, including 46 species of birds and 13 species of mammals.^[7] Animals that inhabit Stephen's Gulch include White-tailed deer, Red Foxes, Black-capped chickadees, and Pileated woodpeckers.

Old growth balsam firs, black pines, and white ash are common in the conservation area.