Lago Ercina

Speleogroup  title


Site list (GPS fixes)

Walks (GPS tracks) 

Coordinates used

LED projects:

 Lamp tests
 ISP isolators
 SMT boards

Expedition logs:

 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


 The Battle of
 El Mazuco

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.

Date Coordinates Description
2009.07.03 N43°25'31" W5°03'09"
30T 333.87 4810.16
Santianes to Cueva Negra (GE)
2008.06.29 N43°26'11" W5°02'45"
30T 334.42 4811.41
Up the valley to Tinganón and back (GE)
2014.06.30 N43°18'08" W5°02'13"
30T 334.79 4796.47
Circuit to Orandi cave and back (GE)
2011.05.23 N43°16'23" W4°58'52"
30T 339.22 4793.13
Lago Ercina to Forcau and back via Ario path (GE)
2009.06.25 N43°19'30" W4°57'16"
30T 341.54 4798.85
Peruyal: drive from Benía (GE), a route down (GE), and a better route (GE).
2011.05.20 N43°20'07" W4°56'51"
30T 342.11 4799.98
Avín track and depression (GE)
2016.06.14 N43°21'41" W4°55'29"
30T 344.05 4802.85
Vega de Hibeo from Ilcedo (GE)
2009.06.24 N43°19'01" W4°54'20"
30T 345.48 4797.87
Canales to Cueva Tayada etc., near Ortiguero (GE)
2015.12.08 N43°24'51" W4°53'29"
30T 346.88 4808.62
Rales to Fuentica (GE)
2012.06.23 N43°23'09" W4°53'24"
30T 346.92 4805.49
2012-Rotella depressions, near Villa (GE)
2008.07.03 N43°21'01" W4°51'21"
30T 349.58 4801.49
Tebrandi and Braña Asiegos in the Sierra de Cuera (GE)
2012.06.17 N43°22'56" W4°49'34"
30T 352.08 4804.96
Tornería depressions (GE)
2009.06.24 N43°14'19" W4°49'16"
30T 352.13 4789.02
From Bulnes funicular then west through El Castillo (GE)
2013.07.14 N43°14'21" W4°49'19"
30T 352.07 4789.08
From Bulnes funicular to Mirador de Pico Urriellu, etc. (GE)
2009.06.24 N43°20'00" W4°42'07"
30T 362.02 4799.32
Alles depression (GE)
2009.06.28 N43°15'11" W4°44'03"
30T 359.22 4790.47
Torca de la Riega Cericiega from Tresviso road (GE)
2012.06.24 N43°14'18" W4°43'03"
30T 360.55 4788.79
Andara mines from Tresviso road (GE)
2010.07.11 N43°22'55" W4°41'45"
30T 362.63 4804.71
To Nacimiento de Río Purón (GE)
2014.07.04 N43°15'51" W4°38'01"
30T 367.41 4791.53
Climb to Urdón canal (GE)
2016.06.17 N43°15'21" W4°36'50"
30T 369.00 4790.58
La Hermida to Bejes (GE)
2010.07.17 N43°18'07" W4°35'30"
30T 370.89 4795.67
To Cueva El Arco down to Suarias track (GE)
2010.07.17 N43°18'42" W4°35'17"
30T 371.22 4796.74
To Suarias to below El Arco (GE)
2013.07.09 N43°14'46" W4°35'00"
30T 371.46 4789.44
To Navedo from the Deva gorge (GE)
2008.07.02 N43°18'20" W4°34'47"
30T 371.88 4796.04
Traverse across NW depression, south of Suarias (GE)
2016.06.09 N43°14'12" W4°34'38"
30T 371.92 4788.40
La Hermida Gorge to Cicera (GE)
2009.06.29 N43°17'58" W4°33'29"
30T 373.63 4795.32
To 777m col and down Hondo del Valmayor depression, SE of Suarias (GE)
2010.07.14 N43°19'59" W4°30'18"
30T 377.98 4798.99
To Cofría resurgence (GE)
2009.07.01 N43°20'26" W4°28'49"
30T 380.00 4799.79
The long way down to (GE) and the better way up from (GE) the Cofría sinks
2015.08.08 N43°17'01" W4°28'59"
30T 379.68 4793.45
Latarma valley towards La Huerta (GE)
2009.06.26 N43°18'31" W4°28'49"
30T 379.95 4796.22
Otero down to Cueva Brujas (GE)


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.

Expeditions to the Picos de Europa and elsewhere since 1973.
Please e-mail Mike Cowlishaw ( or Bill Collis (
if you have any corrections, suggestions, etc.   See also the SpeleoTrove speleology section ».
The pages and data here are for non-commercial use only.   All content © Speleogroup 1973, 2017, except where marked otherwise. All rights reserved. Here is our privacy policy.

This page was last edited on 2016-09-13 by mfc.