Reflection in the Meramec River by the Stinging Nettle Trail at sunset.

Reflection in the Meramec River of the bluffs by the Stinging Nettle Trail at sunset.

Reflection of the bluffs in the Meramec River as seen from the Stinging Nettle Trail at sunset.

Dedicated bikers in Castlewood State Park after an early Sunday morning snow in February.

Train on the tracks below the bluffs in the snow aproaching the bridge over the park road in Castlewood State Park.

Train bridge over the park road in Castlewood State Park after an early Sunday morning snow in February.

Cave in the bluffs over the Meramec River on a 20-degree Saturday afternoon in February. The Meramec was crystal-clear and blue on this overcast day.

Tree reflections in the crystal-clear and blue Meramec on a 20-degree overcast Saturday afternoon in February.

Abandoned stairs that took swimmers and boaters to the Meramec River and Lincoln Beach.

Overlook in the fresh snow on the bluffs in Castlewood State Park. February 2016

Staircase in the fresh snow on the bluffs in Castlewood State Park. February 2016

Early morning walk in the fresh snow on the bluffs in Castlewood State Park. February 2016

Inside the abandoned car by the Stinging Nettle Trail.

Abandoned car while hiking off trail by the Stinging Nettle Trail in Castlewood State Park.

Train tracks below the bluffs in Castlewood State Park.

Reflection on the Wildlife Rescue Center pond as the sun sets in Castlewood.

A chilly overcast day in February hiking the River Scene Trail on the bluffs in Castlewood State Park

Bluff staircase on the River Scene Trail in Castlewood State Park.

Small cave in the bluffs below the overlook on the stairs at Castlewood State Park.

Morning walk on the bluffs in the fresh snow.

Morning walk on the bluffs in the fresh snow.

January snow on the bluffs in Castlewood State Park

January snow on the bluffs in Castlewood State Park

January snow on the bluffs in Castlewood State Park

January snow on the bluffs in Castlewood State Park