The Castle is a large eroded rock formation beside the road through Cedar Pass, its banded slopes rising above a white post-and-rail guard fence. The name comes from the fortress-like profile that early travelers saw in the layered rock. Cedar Pass is the main gateway through the South Dakota Badlands, a landscape of soft sedimentary beds cut by wind and water. The area was proclaimed Badlands National Monument in 1939 and became a national park in 1978.
Linen-textured stock with a white border; production code "8A-H2174" printed at lower right.
No postmark — card is unused. Curteich "C.T. Art-Colortone" linen-era back (1930s–1940s) with "PLACE ONE CENT STAMP HERE" box; white border and linen texture on the front. Clean, no damage beyond light age toning.
Cite this card
"The Castle" rock formation, Cedar Pass, SD, 1938, postcard, c. 1938. PostalPast Collection. https://postalpast.com/postcard/the-castle-rock-formation-cedar-pass-sd-1938. Accessed November 2, 2026.
