 Two other significant nearby sites are the Banyan Valley Cave and the Steep Cliff Cave.Human presence at the site is documented from the Upper Paleolithic to the early Neolithic, but the primary occupation layers represent Hoabinhian hunter-gatherers.Gorman  claims that the Spirit Cave included remains of Prunus (almond), Terminalia, Areca (betel), Vicia (broadbean) or Phaseolus, Pisum (pea) or "Raphia lagenaria" (bottle gourd), Trapa (Chinese water chestnut), Piper (pepper), Madhuca (butternut), Canarium, Aleurites (candle nut), and Cucumis (a cucumber type) in layers dating to around 9,800 to 8,500 years BCE.