• Caption: Soil sampling in Sewra Cave, PA
  • File Name: soil sample collection.jpg
  • Image Date: 2/21/09 3:30:00 PM EST
  • Camera Model: Canon EOS DIGITAL REBEL XT
  • Aperture: ƒ/3.5
  • Focal Length: 18.0mm
  • File Size: 562 KB
  • Pixel Size: 2304 × 3456
  • Credit: Unknown