| Label | Concept definition | Figure(s) | Code |
|---|---|---|---|
| LAGOON | An enclosed <REGION> of salt or brackish <WATER> separated from a larger <WATERBODY> by some more or less effective, but not complete, <BARRIER> (for example: a low bank of <SAND>); lagoon. | 605 | |
| LAKE | <INLAND_WATER> without significant flow that is surrounded by <LAND>; lake. | 606 | |
| LAKE_NEXUS | A representation of a <LAKE> as it connects to related <RIVER_NEXUS>s; lake nexus. | 607 | |
| LAND | <TERRAIN> that is not permanently covered by <WATER>; land. | 608 | |
| LAND_EASEMENT | A deeded <PARCEL> granting easement for a specific purpose (for example: overhead <POWER_TRANSMISSION_LINE>s and/or access to a <PARKING_GARAGE>); land easement. | 609 | |
| LAND_FISH_HATCHERY | A <FISH_HATCHERY> located entirely on <LAND>. | 610 | |
| LAND_FLOODING_PERIODICALLY | A <TERRAIN_SURFACE_REGION> periodically covered by floodwater, excluding tidal <WATER>s; land flooding periodically. | 611 | |
| LAND_MINEFIELD | A <MINEFIELD> on <LAND>. | 612 | |
| LAND_TRANSPORTATION_ROUTE | A <TRANSPORTATION_ROUTE> located principally on <LAND>. | 613 | |
| LAND_WATER_BOUNDARY | A <BOUNDARY> where <LAND> is in contact with a <WATERBODY>. | 614 | |
| LANDFILL | A <TRACT> used for solid waste disposal by burying refuse between layers of <SOIL> to fill in or reclaim low-lying <LAND>; landfill [SOED, "landfill", b]. | 615 | |
| LANDING_CRAFT | A small <WATER_SURFACE_VESSEL> designed to convey <PERSONNEL> and <EQUIPMENT> from larger <WATER_SURFACE_VESSEL>s to <SHORE> during landing operations; landing-craft [SOED, "landing-craft"]. | 616 | |
| LANDSLIDE | A mass of <MATERIAL> (for example: <SOIL>, <ROCK>, and/or <VEGETATION>) that has slipped down from a <CLIFF> or <MOUNTAIN>; landslide. | 617 | |
| LATERAL_BUOYAGE_INDICATION | A <LOCATION> in a <WATERBODY> where a <DIRECTION> away from seaward is specified that indicates how a lateral buoyage <SYSTEM> should be interpreted. | 618 | |
| LAUNCH_PAD | A designated <SITE> or <STRUCTURE> from which a rocket or <MISSILE> is launched; launch pad. | 619 | |
| LEDGE | A narrow, flat <SURFACE> or shelf, especially one that projects (for example: from a <CLIFF>); ledge. | 620 | |
| LEGATION_BUILDING | A <BUILDING> in a foreign country that houses a diplomatic mission that ranks below an embassy; legation building. | 621 | |
| LEVEE | An <EMBANKMENT> to prevent the overflow of a <RIVER>; levee [SOED, "levee", 2.a.1]. | 622 | |
| LEVEL_CROSSING | A <CROSSING> between a <RAILWAY>and either a <ROAD> or another <RAILWAY> on the same vertical level; level crossing. A level crossing is also known as an on-grade crossing. | 623 | |
| LIBRARY | A <BUILDING> in which literary and artistic materials (for example: books, periodicals, newspapers, pamphlets, prints, records, and/or tapes) are kept for reading, reference, and/or lending; library [AHD, "library", 1.a]. | 624 | |
| LICHEN | A composite <LIVING_ORGANISM> formed by the association of <ALGA> with <FUNGUS> and occurring as encrusting or branching friable growths on <SURFACE>s, to which they give a green, grey, or yellow colour; lichen [SOED, "lichen"]. | 625 | |
| LIFT | <EQUIPMENT> consisting of a platform, which is often enclosed, that is raised and lowered in a vertical shaft to transport <HUMAN>s, <EQUIPMENT>, or <MATERIAL>s; lift [AHD, "elevator", 1.a]. In the US, a lift is also known as an elevator. | 626 | |
| LIFT_SHAFT | A vertical passageway in a <BUILDING> used for a <LIFT>; lift shaft. | 627 | |
| LIGHT | An <OBJECT> that is a source of illumination visible to the eye of <HUMAN>s; light [SOED, "light", 4]. | 628 | |
| LIGHT_INDUSTRIAL_FACILITY | A <FACILITY> devoted to the manufacture of goods (for example: electronic <DEVICE>s and/or computer software) that generally require only limited <MATERIAL> and energy inputs; light industrial facility. | 629 | |
| LIGHT_SUPPORT_STRUCTURE | A <STRUCTURE> serving as a support for one or more <LIGHT>s. | 630 | |
| LIGHT_WINGED_AIRCRAFT | A winged <AIRCRAFT> with a maximum capacity of 10 persons; light winged aircraft. | 631 | |
| LIGHTHOUSE | A distinctive <STRUCTURE> exhibiting one or more <LIGHT>s designed to serve as an <AID_TO_NAVIGATION>; lighthouse. | 632 | |
| LIGHTING | A <NON_EMPTY_SET> of <LIGHT>s providing illumination for a <REGION> or <OBJECT>; lighting. | 633 | |
| LIGHTNING | A luminous manifestation accompanying a sudden electrical discharge that takes place from or inside <CLOUD>s or, less often, from tall <OBJECT>s on the <PLANETARY_SURFACE> and/or from <MOUNTAIN>s to <CLOUD>s; lightning. | 634 | |
| LIGHTSHIP | A distinctively marked, manned <WATER_SURFACE_VESSEL> anchored or moored at a defined <LOCATION> to serve as a <MARINE_AID_TO_NAVIGATION>; lightship. | 635 | |
| LINE | A curve connecting a <SET> of two or more <LOCATION>s; line [SOED, "line", n2.III.14.b]. | 636 | |
| LIQUID_DIFFUSER | <EQUIPMENT> located at or below water level where liquids (for example: cooling <WATER>) are spread out; liquid diffuser. | 637 | |
| LIVESTOCK_PEN | An enclosed <TERRAIN_SURFACE_REGION> in which livestock are temporarily kept; livestock pen. A livestock pen is also known as a feedlot or stockyard. | 638 | |
| LIVING_ORGANISM | A living thing; living organism [SOED, "life-form"]. A living organism is also known as a life-form. | 639 | |
| LOAD_CABLE | A strong thick rope of hemp or <WIRE>; load cable [SOED, "cable", 1]. | 640 | |
| LOCAL_PARK | A <TRACT> that is maintained for recreational and ornamental purposes and set aside for public use, generally with few or no <BUILDING>s and located within a <BUILT_UP_REGION>; local park. | 641 | |
| LOCALIZED_ATM_SUSPENSION | A localized <CLOUD> or <NON_AQUEOUS_CLOUD>; localized atmospheric suspension. | 642 | |
| LOCATION | A spatial location. | 643 | |
| LOCATION_PROPERTY_SET | A <PROPERTY_SET> describing the properties of a <LOCATION>. | 644 | |
| LOCK_BASIN | The portion of a <HYDROGRAPHIC_LOCK> bounded by <LOCK_GATE>s at each end; lock basin. | 645 | |
| LOCK_GATE | A pair of massive, hinged <DOOR>s at the end of a <LOCK_BASIN>; lock gate. | 646 | |
| LOCOMOTIVE_ENGINE | A self-propelled <GROUND_VEHICLE> designed to move <RAIL_WAGON>s on a <RAILWAY_TRACK>; locomotive engine [MWCD, "locomotive", 1]. | 647 | |
| LOG | An unhewn portion of a felled <TREE>; log [SOED, "log", 1.a]. | 648 | |
| LOG_BOOM | A <WATERBODY_BOOM> designed to keep <LOG>s ready for a <SAWMILL> from floating away; log boom. | 649 | |
| LOG_CRIB | A <LOG_OBSTACLE> that is formed in a cribwork and filled with <SOIL> and <STONE>s. | 650 | |
| LOG_OBSTACLE | A <TERRAIN_OBSTACLE> constructed primarily of <LOG>s. | 651 | |
| LOG_RAMP | A <RAMP> used to dump <LOG>s into a <WATERBODY> for transport or to haul <LOG>s out of the <WATERBODY> for processing; log ramp. | 652 | |
| LOGGING_SITE | A <TRACT> of <VEGETATION> that is being exploited for lumber resources; logging site. | 653 | |
| LOW_CLOUD | A <CLOUD> of the genus stratocumulus or stratus; low cloud. Also the base of a <CLOUD> of the genus cumulus; cumulonimbus; or, occasionally, nimbostratus. | 654 | |
| LOW_CLOUD_CEILING_REGION | An <ATMOSPHERE_REGION> in which the <<ATM_CEILING>> due to <CLOUD>s is less than 152,4 metres (500 feet) above the <PLANETARY_SURFACE>; low cloud ceiling region. | 655 | |
| LOW_PRESSURE_CENTRE | The <LOCATION> of the centre of an <ATMOSPHERE_REGION> of low <<ATM_PRESSURE>>. | 656 | |
| LOW_VISIBILITY_REGION | An <ATMOSPHERE_REGION> of reduced <<VISIBILITY_DISTANCE>> near a <PLANETARY_SURFACE>; low visibility region. | 657 | |
| LOW_WATER_LINE | The intersection of the plane of low water with the <SHORE>; the <LINE> along a <COAST> or <BEACH> to which the <SEA> recedes at low water; low water line. A low water line is also known as a drying line. | 658 |
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