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Tresviso Caves Project

Home
About
Expedition History
- Expeditions Summary
- Expeditions (by year)
  - 2020-2029
    - 2025
    - 2024
    - 2023
    - 2022
    - 2021
    - 2020
  - 2010-2019
    - 2019
    - 2018
    - 2017
    - 2016
    - 2015
    - 2014
    - 2013
    - 2012
    - 2011
    - 2010
  - 2000-2009
    - 2009
    - 2008
    - 2007
    - 2006
    - 2005
    - 2004
    - 2003
    - 2002
    - 2001
    - 2000
  - 1990-1999
    - 1999
    - 1998
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    - 1996
    - 1995
    - 1994
    - 1993
    - 1991
  - 1980-1989
    - 1988
    - 1987
    - 1986
    - 1985
    - 1984
    - 1983
    - 1982
    - 1981
    - 1980
  - 1970-1979
    - 1979
    - 1978
    - 1977
    - 1976
    - 1975
    - 1974
    - 1973
    - 1972
    - 1971
    - 1970
- Participants
- Sponsorship
- Numbering Conventions
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Surveys – Hoyo Oscuro

Eastern Massif, Picos de Europa, Northern Spain

AN-60 127 KB 40 downloads

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HO-1 126 KB 35 downloads

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