Updated:

According to historians, the Devil’s Furrow was both an ancient and an early medieval trade route leading through the Sasau fords and the Labe (Elbe) River region, all the way to Southern Bohemia. From there it continued to the Danube, northwards to Chotouň village. Legend has it that it was made by St. Procopius after he had yoked a demon to his plough. The road, 21 km long, consists of a massive ditch 14 to 20 m wide with a level bottom 2 to 6 m deep and sloping sides. In some sections the furrow even has two lanes. Together with several other parallel roads, it connected fords on the Sasau River with those on the Elbe River, 35 km away.
 
It is exceptional in that it avoids the central area around Prague, unlike other provincial routes of later construction, which converge on Prague in a star-shape pattern. Hence the theory that it originated before Prague became an important city.

Codex
Abbots Of Sasau MonasteryAbduction Of Prokop Of LuxembourgAbduction Of Wenceslas IvAlbert Iv Of HabsburgAlchemyAnimal HusbandryArmourArmouryAstrologyAvicenna (Ibn Síná)Bailiff And City CouncilBakerBaptismBaths And BathmaidsBeekeepingBeveragesBlacksmithBooks And LibrariesBurghersBurglars And RobbersBurialButcherCarpenters And JoinersCarts And WagonsCharcoal-BurnerCharityCharles IvChroniclesChurchesClothing And FashionCombat TechniqueConciliation CrossesCounterfeitingCourtlinessCrime And PunishmentDiseasesDrinking WaterDugout SheltersEcumenical CouncilEntertainment And GamesExecutionerFabricsFaith And DevotionFarmerFarmingFeudalismFishermanFolk SongsFoodForeignersForgeryFrescosFurnitureGardensGordGothic ArchitectureGravediggerGreetingsGuilds And CraftsHealing HerbsHeinrich Iii Von RosenbergHenry Of LeipaHeraldryHorse-RidingHospitals And AlmshousesHouses And DwellingsHroznata Of Uhzitz And HusitzHuntsmanHygieneInvectiveJailJan "birdie" JešekJan Of PředbořiceJan Ptáček (Hans Capon)JewsJobst Of MoraviaJohn HusJohn Ii Of LiechtensteinJohn Of JensteinJohn Sokol Of LambergJourneymen And ApprenticesKitchensKnighthood TrainingKonrad KyeserKuttenbergLand ArmyLanguage And LiteratureLedetchkoLiturgical ItemsLiturgyLocksLocksmithMalters And BrewersMerchantMerhojedMillersMiners And MineworkersMoneyMorgueMunicipal FinancesMusicNames And SurnamesNecronomiconNeuhofOtto Iii Of Trosky, Called BergowOtto Iv Von BergowPaganismPainterPennants And BannersPharmacistPilloryPopePope Benedict XiiiPope Boniface IxPope Clement ViiPope Urban ViPrayerPriestProkop Of LuxembourgProstitutionRacek Kobyla Of DvojitzRathouse And Town HallRattay On SasauRoman Catholic ChurchRovnaRupert Iii Of The PalatinateSafe ConductSaint ProcopiusSamopeshSasau MonasterySasau TownSchoolsScribeShepherdSigismund Of LuxembourgSir Divish Of TalmbergSir Hanush Of LeipaSir Markvart Von AulitzSir Smil FlashkaSkalitzSkalitz-Sasau DistrictSlaughterhouseSmugglerSources Of LightSt. Wenceslas' CrownStonemasonSwordsmiths And ArmourersTailor And DraperTalmbergTannerTaverns, Inns And InnkeepersThe Battle Of KosovoThe Battle Of NicopolisThe Conquest Of KuttenbergThe Devil's FurrowThe Golden Age Of Charles IvThe Lords Of TalmbergThe Ronov FamilyThe Sacking Of SkalitzThe Western SchismTithesToiletsToolsTournamentsTown GarrisonTown GatesTowns And CitiesTravel And Travelling MerchantsTrebuchetTrial By OrdealUniversityUzhitzVenoms And PoisonsVilem Zajíc Of ValdekVillageVranikWaldensiansWater MillsWater-Driven SawmillsWeaponsWenceslas IvWilliam I Of MeissenWilliam Of Talmberg And MiličínWilliam The Courteous Of HabsburgWindmillsWinegrowerWitchcraftWomen In The Middle AgesWoodcutterWoodsZajíc Family Of Zaluzh And HasenburgZbyněk Zajíc Of Hasenburg
Codex