Article Photos: Hallmarks of a winter trip to a state park include expansive skies, bird-watching and peacefulness

Calm waters and open skies are hallmarks of a winter escape to a state park, like Lake Tenkiller, pictured here. PHOTO PROVIDED. <strong></strong>

Calm waters and open skies are hallmarks of a winter escape to a state park, like Lake Tenkiller, pictured here. PHOTO PROVIDED.