To create a story, I'll need to make some assumptions. Here's a tale based on a fictional interpretation of "FDR's Crack":

Decades later, a young environmentalist, Emma, stumbled upon an old, yellowed map in a dusty archive. The map hinted at the existence of FDR's Crack, and Emma became obsessed with uncovering the truth. She assembled a team of experts, and together, they embarked on an expedition to find the elusive valley.

From that day forward, visitors from all over the world flocked to experience the magic of FDR's Crack, and the legend of President Roosevelt's secret valley lived on, inspiring future generations to cherish and protect America's natural wonders.

The story claimed that FDR, being a man of great vision, had seen the potential for this valley to become a haven for conservation and recreation. He allegedly shared his plans with his guide, envisioning a national park that would protect the area's unique ecosystem and offer a serene retreat for the American people.

After weeks of trekking through the Appalachian Mountains, they finally stumbled upon the entrance to the valley. As they made their way through the winding path, they caught their first glimpse of FDR's Crack - a majestic gorge, teeming with life and filled with an otherworldly beauty.