wall caving
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Krislund — is a Christian summer camp founded and run by several Presbyterian churches. These churches are located along the east coast. The camp itself is in Madisonburg, Pennsylvania, near Penn State. The Camp ActivitiesThe camp believes in closeness to… … Wikipedia
mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… … Universalium
Mendip Hills — Coordinates: 51°18′N 2°44′W / 51.3°N 2.733°W / 51.3; 2.733 … Wikipedia
Underground mining (hard rock) — A three dimensional model of an underground mine with shaft access Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals[1] such as ore containing gold … Wikipedia
Porth yr Ogof — Infobox Cave name = Porth yr Ogof photo = caption = location = near Ystradfellte depth = length = convert|2.25|km|mi|1|lk=on coordinates = survey = survey electronic format = (which cave software is it in) discovery = geology = limestone number… … Wikipedia
Rock-climbing equipment — Rock climbing History Styles Technique Equipment and protection Grades (difficulty of climb) Terminology Belaying Abseiling … Wikipedia
Maja Harapit — Massive south wall of Maja Harapit Elevation 2,218 m (7,277 ft) … Wikipedia
Climbing equipment — A wide range of equipment is used during rock climbing. The most popular types of climbing equipment are briefly described in this article. The article on protecting a climb describes equipment commonly used to protect a climber against the… … Wikipedia
Church Hill Tunnel — The sealed eastern entrance to the Church hill Tunnel Overview Line Chesapeake and Ohio Railway (C O) Location Richmond, Virginia … Wikipedia
cave — cavelike, adj. /kayv/, n., v., caved, caving. n. 1. a hollow in the earth, esp. one opening more or less horizontally into a hill, mountain, etc. 2. a storage cellar, esp. for wine. 3. Eng. Hist. a secession, or a group of seceders, from a… … Universalium
Mining — This article is about the extraction of geological materials from the Earth. For the municipality in Austria, see Mining, Austria. For the siege tactic, see Mining (military). For name of the Chinese emperor, see Daoguang Emperor. Simplified… … Wikipedia
