A large white cave formation, Hercules' Pillar, inside Dixie Onyx Cave, Kentucky. The pillar is a massive fluted column of dripstone with dark vertical streaks, surrounded by cave walls.
White border around image; printed caption at bottom; vertical number at right edge. Early 20th-century printed photo postcard.
No postmark. Divided-back C.T. American Art black & white card, c. 1930s-40s; dealer pencil notation 'CZ-9 50¢' at top; light foxing/toning across the back.
Cite this card
Hercules' Pillar, Dixie Onyx Cave, near Cave City, Kentucky, postcard, c. 1915. PostalPast Collection. https://postalpast.com/postcard/hercules-pillar-dixie-onyx-cave-near-cave-city-kentucky. Accessed October 5, 2026.
