appearance community concrete construction domestic-supply drinking-water height high pressure public reserve reservoir storage structure suburban supply tall tower trees treetops water-supply watertower balustrade barrier church danger edge ledge paint paint roller painter painting risks risky roof roof area rooftop safety white whitewash work working workman american background chunk cold crack fissure freezing glacier gulley ice landscape lump Mount Baker mountain natural nature peak terrain texture top usa view air anchored angles balloon blimp blue cables cameras clouds communication controlled equipment fins floating line lines monitor monitoring sky tethered wired yellow ancient castle coast crusader cyprus defence defend hilltop historical history insecure Kantara Castle Kyrenia military northern old outlook relict Remains ruin stone wall Arbel boulders cliff drop fall fields galilee Israel limestone mount national park panorama rock sheer steep village altitude cloud Fox Glacier highland ice cap Natural landscape new zealand slope snow snowy boulder canada craggy distance distant far jasper range river Rockies Rocky Mountains rough summit valley