A rare sandstone formation is located on the Tafoni Trail, a short distance from the Fir Trail. The large sandstone boulders have naturally eroded over thousands of years to create small, shallow caves in the rock, as well as lacy "fretwork" resembling a stone honeycomb.

The short trail from the Tafoni Trail to the sandstone features is open to hiking only. Please help the District preserve this valuable natural resource; remain on the observation deck and do not climb on the formations.