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Lom Hrebecná

A cache by diGriz Send Message to Owner Message this owner
Hidden : 07/17/2010
Difficulty:
2 out of 5
Terrain:
2 out of 5

Size: Size: regular (regular)

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Geocache Description:

Tato kes vas zavede na misto byvaleho lomu Hrebecna.
English description is at the bottom of the page.

Lom Hrebecná

Vyrazny horsky hreben vychodozapadniho smeru mezi Hrebecnou a Ryzovnou je z vetsi casti tvoren horninami vulkanickeho puvodu, slozenim blizkymi cedici (nefelinity, leucitity, trachyty), ktere zde byly tezeny nekolika mensimi a jednim vetsim stenovym lomem. V hlavnim lomu je skvele odkryta charakteristicka sloupcovita odlucnost vyvrele horniny, ktera vznikla pri tuhnuti lavoveho proudu, mocneho 10 až 25 metru. Vulkanicka cinnost zde probihala, obdbobne jako v Doupovskych horach ci Ceskem stredohori, v tretihorach, v oligocenu az miocenu (zhruba pred 35-17 miliony let).

Kamen se v lomu tezil minimalne od pocatku 20. stoleti, kdy jej provozovala karlovarska Sprava silnic. Surovina slouzila k vyrobe drceneho kameniva a pouzivala se na upravu cest a silnic v sirokem okoli.

Pohled na lom Hrebecná

Prirodni rezervace Ryzovna

Lom Hrebecna se nachazi v prirodni rezervaci Ryzovna. Prirodni rezervace chrani v teto nadmorske vysce zcela ojedinely zbytek druhove neobycejne prirozene horske buciny zachovane na severni strane uzemi. V zavetrne poloze pod terennim zlomem, na mistech s velkou akumulaci snehu a trvale zvysenou pudni vlhkosti, vzniklo druhove pestre spolecensto horske vysokobylinne nivy.

Do soucasne doby byla na uzemi rezervace prokazana vice nez stovka druhu rostlin, z nichz je 17 chranenych, mezi nimi i vraticka mesicni, tucnice obecna, rosnatka okrouhlolista a plavunik alpsky. Fauna je druhove pomerne chuda, presto se zde muzete setkat se zmiji obecnou ci slepysem krehkym. Zatim jen vyjimecne zde byl zaznamenam vyskyt syce rousneho a tetrivka obecneho. Na lukach byl prokazan vyskyt chrastala polniho.

O kesi

Kes je Lock&Lock krabicka o objemu cca 1,5 litru. Jedná se tak trochu o "ježka v kleci", ale opravdu není potreba hrubá síla, prosím, berte na to ohled :) Na miste davejte pozor, shora mohou padat kameny. Take davejte pozor kam slapete, na nekterych mistech se drzi voda, i kdyz nemusi byt na prvni pohled videt :) Kes se nachazi v zaveru naucne stezky Hrebecna. Tato stezka ma 9 zastavek, kes se tyka zastavky osme. Posledni, devata zastavka se nachazi par metru od parkovacich souradnic a pojednava o bydleni na Hrebecne. Zacatkem stezky vede multicache Naucna stezka Hrebecna.

Ke druhe stage se vztahuje jista "zajimavost", ktera se ovsem netyka ani lomu, ani rezervace. Jeste donedavna (dva mesice pred publikaci) byla informacni tabule plna pravopisnych a faktickych chyb (napr. bilinné apod.). Nyní již je tabule vymenena, ovsem minimalne jedna chyba zustala. U obrazku zmije je nemecky popisek patrici k Chrastalovi polnimu.

Souradnice

Stage 1

N 50° 23.779 E 012° 50.184

Na prvni stage naleznete informacni tabuli s poradovym cislem 8. Zde bude vasim ukolem zjistit, do jakeho roku se zde kamen tezil.

Kamen se zde tezil do roku X

Stage 2

N 50° 23.733 E 012° 50.078

Na druhé stage se nachazi informacni tabule o prirodni rezervaci Ryzovna. Zde zjistete presne cislo, ktere tabule uvadi v souvislosti s poctem druhu rostlin v teto oblasti.

Na uzemi rezervace bylo prokazano vice nez Y druhu rostlin.

Final

Finálové souradnice zjistíte vypoctenim dvou nasledujicih vzorecku.

N 50° 23. ((X/10 + Y)*2 + 39)
E 12° 50. (Y - 104)

English

Short description

Cache is Lock&Lock and it's about 1.5l. Getting cache out can be sort of a puzzle, so please be patient, you don't have to use force to get it out :) At site of the quarry please watch out for falling rocks. Also watch your steps, there could be some places which doesn't seem like that, but are very wet.

Cache is located at the end of Hrebecna nature trail. There is another multicache at the beginning of the trail, Naucna stezka Hrebecna.

Stage 1

N 50° 23.779 E 012° 50.184

At coordinates listed above is info board #8 which belongs to Hrebecna nature trail. Your task is to find out when (at which year) mining stopped here (It's first 4- digit number in text). This number is value X.

Stage 2

N 50° 23.733 E 012° 50.078

At stage 2 is another info board, this one is about Ryzovna natural reserve. Your task is to find out how many plant species is in this reserve (The only 3-digit number in text). This number is value Y.

Final

You'll get the final coordinates by solving this two simple formulas:

N 50° 23. ((X/10 + Y)*2 + 39)
E 12° 50. (Y - 104)

Additional Hints (Decrypt)

PM: cbq xnzrarz h fzepxh
RA: haqre gur fgbar arne fznyy fcehpr gerr

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)



 

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