The Battle of
 El Mazuco

Speleogroup is a small caving club, formed by a caving team in 1968. On this site are details of some of our projects, summaries or transcriptions of our caving expedition logs, and a translation of El Mazuco (La defensa imposible).

LED caving light projects

Project	Description
Lamp tests	Live (in-cave) lamp tests of Luxeon Star LED lamps
ATtiny-A	Luxeon Star LED caving lamp based on the Atmel ATtiny15L AVR microcontroller
LT1512-A	Luxeon Star LED caving lamp based on the LT1512 SEPIC (buck/boost) battery charger IC
ISPisolaters	ISP Isolators for Atmel AVR microcontrollers
SMT boards	How to make SMT boards at home (pictorial)

Expeditions

Members of Speleogroup have participated in the following expeditions to Northern Spain. See also our speleological sites list, and our notes on the mapping coordinate systems used.

Year	Primary destination(s)	with
1973, August–September	La Hermida Gorge	BUSS & OUCC » (OmniBUSS 5 » & OUCC Report 1973 »)
1974, December–1975, January ◊	Rales and Llanes
1975, July–August † ◊	Rales system, Pozo del Infierno, Los Lagos, Forcau, La Hermida	SCAL, Montpellier
1976, July	Vega El Forcau (Forcau ’76)	OUCC (Proceedings 8 », or text version »)
1977, April	Reconnaissance, Garma Ciega and Ribadesella	Quad-C, CCCC
1977, July	Garma Ciega	OUCC, MUSS, PCG
1979, July	Los Lagos, Toyu, Ramales	OUCC
1982, July †	La Franca, Suarias, Latarma & Toyu survey	IBMCC
1983, July–August † ◊	La Franca & Llanes », El Cuevón de Pruneda (Purón)
1985, August † ◊	La Franca, Pruneda, Los Lagos, Fuentica, La Hermida & Bejes, etc.	OUCC, Rales cavers
1986, August † ◊	Pruneda, Pozo del Infierno, Cueva Negra, Rafa’s group, Toyu, etc.	Rafa & ‘The Wild 13’
1987, July †	Rales, El Mazuco, Tinganón	Rafa & Spanish group
1988, August †	via France; Cabañuca, La Boriza, Rioja
1989, July	Llanes area, Mestas, Socueva, La Borbolla, etc.	Angel
2000, July ◊	Fuente Dé, Tinganón, Fuentica, etc.
2001, July ◊	Cubilla, El Mazuco, Orandi, Viango, Pozo del Infierno, etc.
2002, June ◊	El Mazuco, Pruneda, hikes, General Strike, Cabañuca, etc.
2003, July ◊	Andinas, Bulnes, Trumbio, Viango, Cueva Negra, high Picos
2004, June † ◊	Bulnes, Cueva Bolado, Green Sink, etc.
2005, July–August † ◊	Rales, Peña Blanca, Espinosa, Ramales, Durango etc.	Rales cavers
2006, June–July † ◊	Gesaltza, Viango, Forcau, Devoyu, Ramales, Balzola, etc.
2007, June † ◊	High Picos, Devoyu, Caín, Rales, Sotres

 †  Full log transcription (other pages are summaries). All text in the transcriptions was originally written in the field by Bill Collis and/or Mike Cowlishaw, except where noted.

 ◊  Illustrated page (all photographs are contemporary with the log in which they appear).

Speleogroup members have also participated in the following explorations:

Year	Primary destination	with
1968–	UK	BEC », BUSS, IBMCC, MCS », OUCC », SWCC »
1974, Summer	Co. Fermanagh	BUSS
1978/9	Mexico	IBMCC
1980/1	USA, New York based	Yorktown High »
1982, April	Co. Clare	IBMCC
1983, April	Co. Clare	IBMCC, KCC
1986–	Italy
2003	Hawai’i Big Island Lava tube caves

Translation

Project	Description
The Battle of El Mazuco	A translation of El Mazuco (La defensa imposible) by Juan Antonio de Blas, in La guerra civil en Asturias, Tomo 2, 1986.

This page was last edited on 2008-03-12 by mfc.   All content © Speleogroup 1973, 2008. except where marked otherwise. All rights reserved. Here is our privacy statement.