observation area
21The Southern Star (observation wheel) — The Southern Star The Southern Star prior to its 2009 closure General information Status Dismantled for major repairs Type …
22Mount Tremper Fire Observation Station — U.S. National Register of Historic Places …
23participant observation — A major research strategy which aims to gain a close and intimate familiarity with a given area of study (such as a religious, occupational, or deviant group) through an intensive involvement with people in their natural environment. The method… …
24Mount Adams Fire Observation Station — U.S. National Register of Historic Places …
25Chickatawbut Observation Tower — U.S. National Register of Historic Places …
26nuclear, biological, chemical area of observation — branduolinio, biologinio ir cheminio stebėjimo rajonas statusas T sritis Gynyba apibrėžtis Geografinis rajonas, susidedantis iš keleto branduolinio, biologinio ir cheminio stebėjimo rajonų, prilyginimas armijos ar armijų grupės, arba jungtinių… …
27Tropical cyclone observation — has been carried out over the past couple of centuries in various ways. The passage of typhoons, hurricanes, as well as other tropical cyclones have been detected by word of mouth from sailors recently coming to port or by radio transmissions… …
28Nechako Canyon Protected Area — Nechako (rivière) Pour les articles homonymes, voir Nechako (homonymie). Nechako (en)Nechako River La Nechako à pr …
29Marine protected area — Milford Sound, New Zealand is a Strict Marine Reserve (Category Ia) Mitre Peak, the mountain at left, rises 1,692 m (5,551 ft) above the sea.[1] Marine protected areas, like any protected area, are regions in which human activity has… …
30Mississippi National River and Recreation Area — Mississippi National River and Recreation Area …