札ノ原バス停近くにある片足鳥居は、かつて温泉神社が「四面社」と呼ばれていた頃の第一鳥居で、この先は女人禁制であった。文政10年（１８２７）9月12日北有馬の八木与一兵衛が建立した鳥居。いつ何が原因で壊れた片足鳥居になったか不明だが、道路の拡張や用地造成などで三分の二ほど埋まった形になっているのを据え替えたのである。
　鳥居は、ヌキの一部をつけた左側だけだが、柱は高さ4.7ｍ、円周2.3ｍ、重さ約7ｔの自然石でカサ石の一部と「四面社」と刻んだ石額も保存されている。
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「Kataasi-torii」
The "Kataashi Torii" (One-Legged Torii) located near the Fudano-hara bus stop was the first torii gate of the former Onsen Shrine, known as the "Shimen-sha," and beyond this point, entry was restricted to women. It was erected on September 12th, 1827, by Yaegi Yoichibei from Kitarima. The exact cause of how and when the torii gate became one-legged and broken is unknown, but it was relocated after being buried about two-thirds of its original height due to road expansion and land development.The torii gate has only a portion of the left side remaining, with a pillar made of natural stone measuring 4.7 meters in height, 2.3 meters in circumference, and weighing approximately 7 tons. A stone plaque with the inscription "Shimen-sha" is also preserved