Morning hike on the bluffs in Castlewood as the storm clouds roll in.

Saturday evening hike on the Stinging Nettle Trail in Castlewood State Park.

July First on the bluffs in Castlewood State Park 2016.

Monday morning walk on the bluffs in Castlewood State Park June 2016.

Black Rat Snake in a dead tree on the Al Foster Trail between Castlewood and Sherman.

Saturday evening walk on the Castlewood bluffs in May 2016.

From the bluffs in Castlewood May 2016.

Copperhead on the trail between the bluff and the concrete water tank while hiking with Crick in Castlewood State Park.

Wild Bergamot while hiking the River Scene Trail on the bluffs in Castewood State Park.

Sunday, May First on the bluffs in Castlewood State Park 2016.

The first time I noticed the gap between the rocks in the mid '70s, it was only an inch or two wide, more like a large crack in the stone. Over the years it has slowly increased as the piece on the right slowly slides away and down the bluff.

Meramec River from the bluffs in Castlewood State Park.

Bluebells in bloom on the Stinging Nettle Trail in Castlewood State Park

Early morning hiker and his dog on the Grotpeter Trail in Castlewood State Park. April 1, 2016

Early morning hiker and his dog on the River Scene Trail April 1, 2016

Spring on the bluffs in Castlewood State Park March 29.

The Meramec River at Castlewood State Park March 23.

A pair of mallard ducks taking flight on Kiefer Creek in Castlewood State Park.

A pair of mallard ducks on Kiefer Creek in Castlewood State Park.

Mallard duck in flight over Kiefer Creek in Castlewood State Park.

Everything is starting to turn green in Castlewood State Park March 14.

Fallen tree branch while hiking off trail on the bluffs in Castlewood State Park.

The bluffs in Castlewood State Park on a cloudy afternoon in March 2016.

Kiefer Creek by the Lone Wolf Trail on a overcast afternoon in March 2016.

Train passing below the bluffs in Castlewood on the first Sunday evening in March 2016.