April 16, 2022 @ 10:00 am

This double header event is AOA’s first field trip featuring the geology of the Hocking Hills. Revel in the beauty of the many spring wildflowers that carpet the mature forest floor of AOA’s Bonnoront Preserve. We will explore the box canyon framed by ridges and high rock bluffs with a deep cave and high wet-season waterfall at the back. Bonnoront Preserve is part of AOA’s Hocking River Conservation Corridor Initiative which has conserved 36 properties in the river corridor between Logan and Lancaster.

Our hike will be joined by several expert geologists including Mike Angle and Mohammed Fakhari, both formerly of ODNR, and Tom Jenkins, among others. Learn about the geologic history that led to the formation of the Hocking Hills distinctive sandstone outcrops, and subsequent erosion and exposure.

We will hike up to view the exceptionally high stone outcrops at the back of the canyon. Our geologist leaders will highlight and discuss sedimentary features in the Mississippian Black Hand member sandstone, including cross-bedding, scour features, graded bedding, iron staining, diagenetic iron deposits, and joints. We will also hike to a 19th century sandstone quarry on the preserve and observe evidence of mining and piece together the history, as best we can.

Afterwards, feel free to linger and wander the preserve on your own or help remove invasive species that threaten our native wildflowers. Those interested are invited to cross Highway 33 to hike along the Hocking River, through the restored prairies and the riparian and the bluff side forests that are part of AOA’s Conservation Demonstration Site.

The Bonnoront Preserve hike and other AOA events are free and open to the public. This event will be held rain or shine – so please come prepared and dress appropriately for the weather and hiking on slopes.

Time: Meet at 10:00 a.m.
What to Bring: Lunch, snacks and/or drinks of your choice. Insect repellant may be desired as it warms.
Location: Bonnoront Preserve is located north of Rockbridge just off of Highway 33. Park along the west side of Bailey Road. Please do not block the road. We will enter the forest via the old dirt road on the far left side of the former Bonnoront house which is painted light blue. The Google map address for the property is 25653 Bailey Road, Rockbridge, OH, 43149.

Directions to Event