{"id":5541,"date":"2020-11-21T18:26:00","date_gmt":"2020-11-21T17:26:00","guid":{"rendered":"https:\/\/beta.svetkamene.eu\/?p=5541"},"modified":"2021-10-05T18:50:06","modified_gmt":"2021-10-05T16:50:06","slug":"mining-in-obri-dul-giant-valley-part-one","status":"publish","type":"post","link":"https:\/\/svetkamene.eu\/index.php\/en\/2020\/11\/21\/mining-in-obri-dul-giant-valley-part-one\/","title":{"rendered":"Mining in Ob\u0159\u00ed d\u016fl (Giant Valley) &#8211; Part One"},"content":{"rendered":"\n<p><strong>Speleologists from Horn\u00ed Albe\u0159ice have been carrying out mining and geological surveys of old mines in the Krkono\u0161e (Giant Mountains). They do not omit Ob\u0159\u00ed d\u016fl (Giant Valley) either, which is the largest mining area in the Krkono\u0161e mountain. <\/strong><\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>They have discovered that the Sn\u011b\u017eka (Snow Mountain) hides a&nbsp;well-preserved complex of mines which represents mining industry from the 16<sup>th<\/sup> century to 1950s. After many years of efforts speleologists managed to open a&nbsp;part of the Kov\u00e1rna mine to the public.<\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4>History<\/h4>\n\n\n\n<p>According to old chronicles the trade route lead to Silesia over the Krkono\u0161e since 12<sup>th<\/sup> century. This route was used by the first prospectors, therefore, it is very likely that small-scale metal mining took place already in the Middle Ages. Indirect evidence can be found in R\u00fdchory and Svoboda nad \u00dapou since the 11<sup>th<\/sup> and 12<sup>th<\/sup> centuries. Search for these old mines in Ob\u0159\u00ed d\u016fl (Giant Valley) is very complicated. Mining activities lasted with various breaks until 1960s and each newer mining activity largely covered older one. The oldest documented record of local mining activity can be found in 1511 where it is stated that Meissen miners came to Trutnov who moved to Ob\u0159\u00ed d\u016fl (Giant Valley) after a&nbsp;setback in a&nbsp;gallery in \u0160ibeni\u010dn\u00ed vrch (Gallows hill). In 1534 a&nbsp;company of seventeen entrepreneurs requested that a&nbsp;mine prerogative for Ob\u0159\u00ed d\u016fl (Giant Valley) will be given to them by emperor Ferdinand II.&nbsp; In respect of mine remoteness, they planned to build iron works, stamping mill, a&nbsp;small settlement with inn, brewery and other facilities. The then Lord of Vrchlab\u00ed Kry\u0161tof Gendorf of Carinthinia (Cristopher Gendorf of Carinthia), emperor&#8217;s&nbsp;advisor in matters of mining and minting, did not recommend it for it would have created a&nbsp;competition to his own steel mines in Herl\u00edkovice and Mar\u0161ov. With regard to findings several places were mined, nonetheless. In 1570, a&nbsp;mine entrepreneur and prospector Hans Seyfert found rich deposits of copper, lead, and arsenic ores there.<\/p>\n\n\n\n<div style=\"height:46px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4>The Kov\u00e1rna mine (Smithy Mine)<\/h4>\n\n\n\n<p>Main mining was concentrated in Kov\u00e1rna and Gustav mines which were connected not deep under surface. In the books it is stated that a&nbsp;total depth of mine is 140 meters which is 24.5 meters under the \u00dapa river. These measurements have not been supported by evidence yet for when geological survey was carried out in 1950s the lowest part of the mine was covered. The mine depth is told to be 100 meters. In respect of the Czech Republic this depth is not huge but due to its remoteness and extreme climate conditions of Ob\u0159\u00ed d\u016fl (Giant Valley) miners had a&nbsp;hard time. Ore and gangue were carried out from mines either manually or they used capstans or simple winches. Neither mining facilities nor their remnants were found. There is no historical evidence. In some parts (of mine) there are climbing sections &#8211; wood constructions with platforms which are interconnected with ladders. They are no typical ladders. The typical ones were found just few. These were of special type i.e. single-stage ladders called &#8220;lezce&#8220; (large logs with carved holes for feet). They were found preserved five-meter long in the mine. For miners climbing on them with full ore baskets on their backs had to be a&nbsp;nightmare. They extracted ore manually using hammer and pick or so called &#8220;fire setting<a>&#8220;<\/a>. Fire-setting method used local timber as a&nbsp;fuel. In the tunnel foreground the heating fire was made. Once the temperature reached 600\u00b0C, the rock was heated up and then quickly cooled down with water. The result was a&nbsp;cracked suitable rock for mining. Mining using only hammer and pick was very slow. Miners proceeded with mining just few centimetres per day. On the contrary, fire-setting method was faster. Miners were able to dig a&nbsp;meter or more in a&nbsp;shift. When fire-setting method was used to dig large area, there were cubic meters of a&nbsp;rock torn away.<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Source: <a href=\"http:\/\/www.lomyatezba.cz\">www.lomyatezba.cz<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Speleologists from Horn\u00ed Albe\u0159ice have been carrying out mining and geological surveys of old mines&#8230;<\/p>\n","protected":false},"author":31,"featured_media":2994,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[376],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Mining in Ob\u0159\u00ed d\u016fl (Giant Valley) - Part One - Sv\u011bt Kamene<\/title>\n<meta name=\"description\" content=\"Hlavn\u00ed t\u011b\u017eba se soust\u0159edila do d\u011bl Kov\u00e1rna a Gustav, kter\u00e9 byly nehluboko pod povrchem propojeny.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/svetkamene.eu\/index.php\/en\/2020\/11\/21\/mining-in-obri-dul-giant-valley-part-one\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mining in Ob\u0159\u00ed d\u016fl (Giant Valley) - Part One - Sv\u011bt Kamene\" \/>\n<meta property=\"og:description\" content=\"Hlavn\u00ed t\u011b\u017eba se soust\u0159edila do d\u011bl Kov\u00e1rna a Gustav, kter\u00e9 byly nehluboko pod povrchem propojeny.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/svetkamene.eu\/index.php\/en\/2020\/11\/21\/mining-in-obri-dul-giant-valley-part-one\/\" \/>\n<meta property=\"og:site_name\" content=\"Sv\u011bt Kamene\" \/>\n<meta property=\"article:published_time\" content=\"2020-11-21T17:26:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-10-05T16:50:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/svetkamene.eu\/wp-content\/uploads\/2021\/01\/9b61c9add26ae66de11f78f97af7a160_M.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"746\" \/>\n\t<meta property=\"og:image:height\" content=\"495\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napsal(a)\" \/>\n\t<meta name=\"twitter:data1\" content=\"Martina Hovorkov\u00e1\" \/>\n\t<meta name=\"twitter:label2\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/svetkamene.eu\/#website\",\"url\":\"https:\/\/svetkamene.eu\/\",\"name\":\"Sv\u011bt Kamene\",\"description\":\"Port\u00e1l informuj\u00edc\u00ed o v\u0161em co souvis\u00ed s kamenem\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/svetkamene.eu\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"cs\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\/\/svetkamene.eu\/index.php\/en\/2020\/11\/21\/mining-in-obri-dul-giant-valley-part-one\/#primaryimage\",\"url\":\"https:\/\/svetkamene.eu\/wp-content\/uploads\/2021\/01\/9b61c9add26ae66de11f78f97af7a160_M.jpg\",\"contentUrl\":\"https:\/\/svetkamene.eu\/wp-content\/uploads\/2021\/01\/9b61c9add26ae66de11f78f97af7a160_M.jpg\",\"width\":746,\"height\":495,\"caption\":\"Pohled v lese na d\u0159ev\u011bnou chaloupku u kter\u00e9 je zaparkovan\u00fd reziv\u00fd voz\u00edk na uhl\u00ed na zhruba 150 centimetrov\u00e9m kusu kolej\u00ed. 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