8672 Richman Road
Located on County Road 69, one mile south of State Route 224

Hidden Hollow Camp is named for the distinct "hidden" flood plain cut by a tributary of the Black River. This area features a plant community of towering trees, as well as a broad variety of wildflowers. The land for this site was obtained through the assistance of the Letha House Foundation and was formerly used as a Girl Scout camp.

The park is made available to organized youth groups for camping and to conservation organizations for nature study, trail projects and hiking experiences. Groups interested in using this park should contact the park office.

A new building is currently under construction at Hidden Hollow Camp which will replace the existing old barn for group activities use.  The building, carefully located on the site to balance programming needs with protection of the existing natural resources, will have 1,650 square feet of enclosed space and a generous 3,000 square foot wrap-around porch. The building will be used by groups such as scouts, churches, schools and other organizations, allowing indoor ‘camp-outs’ and activities throughout all seasons of the year. In addition, the new building will facilitate special nature-oriented programming by the park district. The amenities provided by the new building will be rustic, with items such as a wood burning stove for heat, a simple and minimal food preparation area off to one corner, and outdoor vault toilets located conveniently nearby. Completion of the building is anticipated to be mid to late spring, with construction of the new entrance drive, parking lot, and other improvements to the camp to follow. Seeding of the site and time for establishment of turf cover should allow use of the facility by fall of this year.The park is opened to the public each year during organized hike programs. Contact the park office for more information.