Lago Ercina

Speleogroup  title

Introduction

Site list/GPS fixes

Walks/GPS tracks 

Coordinates used


LED projects:

 Lamp tests
 µ-controlled
 SEPIC
 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


Translation:

 The Battle of
 El Mazuco


Sites of speleological interest

Locations in the table below are usually at a point closest to the site where a GPS fix was possible; this point is sometimes tens of metres from the site. Locations are sorted West→East. Click on a coordinate to see that coordinate on Google Maps.

Coordinates 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.

Altitudes shown with ‘?’ are suspect – uncalibrated altimeter or GPS.
Coordinates Site
N43°30′36″ W5°29′31″
30T 298.56 4820.56
El Sumidoriu sink
N43°13′19″ W5°26′44″
30T 301.38 4788.45
Tarna Hydroelectric plant cave
N43°10′45″ W5°21′36″
30T 308.19 4783.50
Devoyu resurgence
N43°10′45″ W5°21′22″
30T 308.51 4783.49
Devoyu sink
N43°26′51″ W5°11′44″
30T 322.35 4812.93
Cueva del Sumidero
N43°18′33″ W5°03′15″
30T 333.40 4797.28
Cueva Campana in Covadonga
N43°18′17″ W5°02′56″
30T 333.82 4796.78
Gueyu Reinazo resurgence
N43°25′26″ W5°02′48″
30T 334.32 4810.01
Santianes mill Ariba
N43°24′00″ W5°02′00″
30T 335.34 4807.33
La Mujerina area big depression
N43°25′50″ W5°02′10″
30T 335.20 4810.73
Tinganón
N43°25′32″ W5°01′53″
30T 335.56 4810.17
Tinganón feeder’ (337m)
N43°17′47″ W5°01′51″
30T 335.26 4795.82
Trumbio
N43°26′16″ W5°00′55″
30T 336.91 4811.49
Below possible Cueva Negra old resurgence
N43°25′25″ W5°00′22″
30T 337.60 4809.90
Cueva Negra (455m)
N43°26′06″ W5°00′13″
30T 337.84 4811.16
Madre del Río
N43°16′23″ W4°58′52″
30T 339.22 4793.13
Lago Ercina Bar María Rosa
N43°16′22″ W4°58′52″
30T 339.23 4793.10
Lago Ercina carpark
N43°15′40″ W4°58′39″
30T 339.49 4791.80
Forcau route possible caves at +1235m
N43°15′31″ W4°58′23″
30T 339.85 4791.51
Forcau route vertical cave at +1306m
N43°16′55″ W4°58′38″
30T 339.57 4794.11
Lago Ercina cow-shelters
N43°27′44″ W4°58′20″
30T 340.46 4814.11
Pozo de las Grallas, Bufones de Pría (41m)
N43°15′01″ W4°57′55″
30T 340.47 4790.57
Forcau col
N43°14′56″ W4°57′58″
30T 340.39 4790.42
Pozu de Vega El Forcau, +1480m, reconfirmed 2011
N43°24′57″ W4°57′50″
30T 341.00 4808.94
Llamigo sink
N43°19′36″ W4°57′22″
30T 341.40 4799.05
El Peruyal, near Benia
N43°19′57″ W4°56′34″
30T 342.49 4799.64
Avín depression
N43°19′35″ W4°55′02″
30T 344.55 4798.93
Cueva Tayada (Cueva Alda), 450m?
N43°21′42″ W4°54′48″
30T 344.96 4802.85
“Cueva Geoffo” (Cosagra), 190m
N43°24′57″ W4°54′38″
30T 345.32 4808.85
Vizcaina/L’Acebal sink, 119m?
N43°20′07″ W4°54′07″
30T 345.81 4799.89
Cueva Dobros (Depression N of Ortiguero)
N43°26′37″ W4°54′11″
30T 346.00 4811.93
Bar La Cueva, Villahormes
N43°12′51″ W4°54′04″
30T 345.57 4786.44
Resurgences at Caín, 473m?
N43°24′41″ W4°54′05″
30T 346.05 4808.34
Rales System car parking for Molino
N43°24′43″ W4°53′39″
30T 346.64 4808.39
Rales System
N43°19′08″ W4°52′25″
30T 348.07 4798.02
Flea cave, +287m
N43°22′48″ W4°51′54″
30T 348.92 4804.79
Caldueñín, 140 m
N43°21′01″ W4°51′21″
30T 349.59 4801.47
Tebrandi trailhead, ~770m
N43°22′48″ W4°51′15″
30T 349.80 4804.77
Pozo de Fresno »
N43°23′04″ W4°51′06″
30T 350.01 4805.26
El Mazuco », Ermita del Santo Ángel
N43°24′47″ W4°50′49″
30T 350.46 4808.43
Resurgence below Green Sink
N43°22′42″ W4°50′30″
30T 350.81 4804.56
Boriza (track above and to S.)
N43°22′44″ W4°50′22″
30T 350.99 4804.62
Flood sink above Boriza
N43°24′00″ W4°50′13″
30T 351.24 4806.96
Green Sink cave (above and to S. of sink)
N43°22′35″ W4°49′55″
30T 351.59 4804.33
Ojo del Río Bolugas
N43°22′35″ W4°49′53″
30T 351.63 4804.33
Cueva a Sul
N43°22′29″ W4°49′53″
30T 351.63 4804.14
Collau Roviera
N43°22′55″ W4°49′33″
30T 352.10 4804.94
End of the road S. of Alto de la Torneria
N43°22′48″ W4°49′17″
30T 352.45 4804.71
Rafa’s Cabaña
N43°22′18″ W4°47′35″
30T 354.73 4803.74
Spring at west end of Viango
N43°22′14″ W4°47′07″
30T 355.36 4803.60
Cueva de la Yosa del Viango
N43°10′11″ W4°47′04″
30T 354.95 4781.29
Refugio de Aliva (1666m)
N43°22′32″ W4°46′36″
30T 356.06 4804.14
Dry stream valley, NE Viango
N43°12′20″ W4°46′22″
30T 355.98 4785.25
‘Cow shelter’ caves, nr. road to Aliva
N43°24′09″ W4°46′15″
30T 356.60 4807.12
Bar La Roxia at La Pareda
N43°24′04″ W4°45′51″
30T 357.14 4806.96
Cueva Bolado (Herrería)
N43°22′26″ W4°44′08″
30T 359.39 4803.89
Fuente Grande, near Viango
N43°14′10″ W4°43′22″
30T 360.11 4788.56
Sink 3km E of Sotres (1277m?)
N43°14′13″ W4°43′20″
30T 360.16 4788.65
Shaft 3km E of Sotres (1276m?)
N43°22′39″ W4°43′13″
30T 360.64 4804.26
El Cuevón de Pruneda (Purón cave)
N43°22′11″ W4°42′48″
30T 361.18 4803.39
Holly depression above Las Conchas
N43°14′25″ W4°42′40″
30T 361.07 4789.01
Sotres crossroads depression
N43°22′22″ W4°41′44″
30T 362.64 4803.68
Nacimiento de Río Purón
N43°15′23″ W4°41′42″
30T 362.41 4790.77
Valle de Sobra resurgence and cheese cave (849m?)
N43°15′23″ W4°41′39″
30T 362.48 4790.77
Valle de Sobra abandoned cheese cave (15m E)
N43°19′43″ W4°40′17″
30T 364.49 4798.74
‘Cobalt’ mines, Río Cares
N43°16′31″ W4°40′14″
30T 364.44 4792.83
Los Jarres, San Esteban
N43°21′48″ W4°39′58″
30T 364.99 4802.60
La Borbolla top depression
N43°21′50″ W4°39′53″
30T 365.11 4802.66
La Borbolla middle depression (El Jorcón)
N43°21′51″ W4°39′07″
30T 366.14 4802.67
La Borbolla lower depression
N43°20′01″ W4°38′42″
30T 366.65 4799.26
Cueva Llonín (Directions)
N43°16′32″ W4°38′01″
30T 367.44 4792.80
Pozo del Infierno (310m)
N43°22′00″ W4°38′00″
30T 367.66 4802.92
La Borbolla village
N43°18′39″ W4°36′26″
30T 369.65 4796.67
Vauclusian spring (Deva gorge, between Estragüeña and Puentelles)
N43°15′13″ W4°36′25″
30T 369.55 4790.32
La Hermida hot spring
N43°18′03″ W4°36′19″
30T 369.79 4795.56
Fuente de Estragueña, 110m
N43°18′10″ W4°35′34″
30T 370.81 4795.76
Goat Cave through trip
N43°18′10″ W4°35′32″
30T 370.84 4795.77
Crow Cave with pitch
N43°18′09″ W4°35′31″
30T 370.88 4795.71
“El Arco”
N43°18′07″ W4°35′31″
30T 370.88 4795.67
Cueva El Arco (480m)
N43°12′21″ W4°35′32″
30T 370.66 4785.00
Cueva de Fair Share BUSS 1973 (215m)
N43°21′03″ W4°34′41″
30T 372.10 4801.07
Andinas westernmost (highest) depression
N43°18′12″ W4°34′13″
30T 372.63 4795.78
Cabañuca, 305m
N43°18′24″ W4°34′11″
30T 372.69 4796.15
Cabañuca resurgence, 208m?
N43°20′00″ W4°33′25″
30T 373.78 4799.10
Andinas bottom sink
N43°20′16″ W4°29′45″
30T 378.74 4799.49
Cofría resurgence rift parking (nr. Sobanejo)
N43°20′27″ W4°29′16″
30T 379.40 4799.81
Cofría resurgence rift 2009 & 2010
N43°18′31″ W4°29′13″
30T 379.41 4796.24
Cueva Las Brujas (~170m)
N43°20′29″ W4°29′02″
30T 379.72 4799.87
Cofría sinks (Regato Mata del Tocial)
N43°17′00″ W4°29′04″
30T 379.56 4793.44
Cueva Toyu barn (203m)
N43°16′48″ W4°28′54″
30T 379.79 4793.07
Cueva de los Marranos »
N43°16′48″ W4°28′52″
30T 379.82 4793.07
Cave 68
N43°15′09″ W3°36′18″
30T 450.89 4789.12
Asón resurgences (197m?)
N43°21′45″ W3°16′32″
30T 477.67 4801.20
Cubilla (192m?)
N43°21′38″ W3°15′17″
30T 479.36 4800.97
Cueva Lastrilla (98m?)
N43°21′41″ W3°14′47″
30T 480.03 4801.06
Turn-off to Cueva Lastrilla
N43°07′00″ W2°40′00″
30T 527.12 4773.91
Parque Natural de Urkiola
N43°07′20″ W2°43′26″
30T 522.46 4774.51
La Cueva de Balzola (308m)
N42°59′29″ W2°25′10″
30T 547.33 4760.11
Cueva Gesaltza

 †  Location estimated from map or other source (all other coordinates are GPS readings).

Expeditions to the Picos de Europa since 1973.
Please send e-mail to Mike Cowlishaw » (mfc@speleotrove.com) with any corrections, suggestions, etc.  See also the SpeleoTrove speleology section ».
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This page was last edited on 2011-06-18 by mfc.