Introduction
Site list (GPS fixes)
Walks (GPS tracks)
Video clips
Panoramas
Coordinates used
Electronic projects:
Bat detector
Lamp tests
µ-controlled lamp
SEPIC-based lamp
ISP isolators
Making SMT boards
Expedition logs:
Spain 1973, 1974,
1975, 1976, 1977,
1979, 1982, 1983,
1985, 1986, 1987,
1988, 1989, 2000,
2001, 2002, 2003,
2004, 2005, 2006,
2007, 2008, 2009,
2010, 2011, 2012,
2013, 2014, 2015,
2016, 2017, 2018,
2019, 2020, 2021,
2022
Mexico
New England
Translation:
The Battle of El Mazuco
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GPS tracks
A list of walks (GPS tracks) on the Speleogroup site, sorted West→East.
Click on the description to open or save the .gpx file, or on
‘GE’ to see the track on Google Earth (if you have Google Earth installed).
Click on a coordinate (usually the start of the track) to see that
coordinate on Google Maps.
The GPS coordinates shown are typically the starting point, and are
in °,′,″ and UTM eastings and northings, using the European
1950 datum as used on most Spanish maps (including the 1:25,000 ‘blue
series’). To get WGS-84 coordinates, subtract 4.1″ from N and
add 4.8″ to W (an adjustment of ~160m). For more details on
this and the grid systems used on the Spanish maps of the area, see
Coordinate systems.
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