False 1623-81 Schwa Höhle 81 1623 1c 1/T + 81 1623-81 CUCC 1977 - Team Geriatric A short section of horizontal passage 5m below the surface, with two entrances, but no way on. Grade 1 extended elevation in Cambridge Underground expedition report 15m. caves/81/81.svx plateau/81/81.html plateau/81/81.html