Determining Appropriate Map Features
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Map
What information is needed for my project?
The required map information is established using standard
land planning processes (models). Particular models require particular
map data.
One must be very thorough in the initial (inventory) phases
of the Geographic Information Systems process. Existing local features
are always an integral part of determining an appropriate community development
plan. Field visits, photographs, and (land and water) maps are used
to identify, and then inventory (in terms of absence or presence) all significant
local features. Next, it is important to determine how to "best"
represent the collective features (accurately) on an existing, or newly
created (base) map.
The data collection process is sometimes called "feature
inventory." The following listing suggests the
type features that could (or should) be identified, inventoried, and classified.
Typical "sets" of GIS Map Features
Features should be "of value" to the information gathering
effort. As you study a map (or photographs) of an area, always ask
a few practical questions before deciding to use or discard a feature from
the exhaustive list of data inventory possibilities.
-
Does (other) more accurate or reliable information currently
exist?
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What agencies or organizations have useful information? (USGS,
SCS, USFS, etc.)
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Which paper or electronic maps have specific features? (USGS
topography, etc)
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Is the particular feature "under consideration" needed in
this GIS project?
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Will the overall quality of the project suffer if I do not
to include this feature?
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What are the units of measure that "quantify" each of the
map features?
Some map features are measured directly, others are interpreted
indirectly. Specific categories of map feature classifications will
always vary depending on the use, and the user. The following are
suggested map feature classification categories utilized by the U.S. Geological
Survey, et al. (Listed by general land activity category).
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to the Features Index
The Features list includes examples from
both the Built and Natural environment. If you have suggestions
for the listing..., send them e-mail
Agricultural Map Features
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Abandoned farm fields
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Abandoned pasture Bailed hay (round and square)
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Barns and other buildings
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Cultivated crops
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Row crops
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Broadcast crops
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Drill crops
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Fence rows
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Greenhouses
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Hay stockpiles
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Hedge rows
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Improved pastures
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Irrigated cropland
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Livestock
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Orchards
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Terraced cropland and contour plowing
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Unimproved pastures
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Vineyards
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Wood lots
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Shrubs
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Wooded marsh
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Clearings
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Engineering Features
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Athletic stadiums
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Bridges
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Campgrounds
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Canals and drainage ditches
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Cemeteries
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Dam structures
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Drive in theaters
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Fences
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Fire (lookout) towers
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Levees
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Military forts
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Picnic areas
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Pipelines
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Power substations
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Power transmission lines
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wooden poles
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metal towers
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underground cables
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Racetracks
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Railroad stations
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Railroads (related detail features)
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Reservoirs
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River docks and ferry landings
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Road-cuts and Road-fills
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Sewage disposal plants
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Ski lifts
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Tanks (Oil, gas, and water)
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Telephone lines wooden poles metal towers underground
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Telephone substations
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Towers (radio and television)
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Water filtration plants
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Water storage tanks
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Windmills
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Forest Vegetation Features
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Coniferous trees (Pine trees)
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Deciduous trees (Hardwood trees)
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Mixed Predominately Coniferous trees, and Deciduous trees.
(60/40)
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Mixed Predominately Deciduous trees and Coniferous trees.
(60/40)
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Bottom land hardwoods Understory
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Geological and Physiographic Features
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Alluvial Fans
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Anticlines and Synclines
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Cliffs
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Eskers and Drumlins
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Geological faults and fractures
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Hogback ridges
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Rock outcrops
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Sheet or gully erosion
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Volcanic lava flows
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Industrial and Utility Features
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Automobile manufacturing
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Cement, and concrete manufacturing
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Chemical manufacturing and storage
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Corridors and Rights-of-way (gas, oil, and electric)
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Electric lines (wooden and steel towers)
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Electrical power plants
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Electrical sub stations (power distribution)
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Furniture manufacturing
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Lumber yards
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Meat processing plants
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Municipal water wells
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Petroleum and chemical plants
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Petroleum and chemical storage areas
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Pulp and paper mills
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Sawmills
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Sewage disposal plants
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Steel and other metal fabrication
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Stockyards
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Textile mills
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Water purification plants
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to the Features Index
Military and Defense Features
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Airfields (airplanes and helicopters)
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Ammunition dumps (storage)
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Artillery ranges
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Barracks (Quarters or Residences)
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Base (post)
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Headquarters
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Dry-docks
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Mechanized vehicle storage (repair)
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Radar installations
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Rifle ranges
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Shipyards
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Tanks (storage of water, oil, and gas)
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Temporary encampments
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Warship docks
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to the Features Index
Mining and Excavation Features
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Area stripping
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Auger mining
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Contour stripping
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Dredging
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Hydraulic mining
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Land clearing operations
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Open pit mining
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Rock quarries
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Mine dumps
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Mine shafts
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Mine tunnels
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Oil and gas fields
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Quarries
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Storage piles
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Borrow pits
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Gravel, sand, or clay pits
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to the Features Index
Transportation and Communication Features
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Abandoned Railroads
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Airport facilities
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Aprons
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Buildings (various)
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Hangers
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Runways
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Taxi ways
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Terminals
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Airports
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Airfields
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Heliports
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Landing areas
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Landing strips
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Boat docks and piers
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Bus terminals
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County or Parish
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(2 lane) Divided highway
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(3 lane) Divided highway
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(4 lane) Divided highway
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Federal Highways
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(2 lane) Divided highway
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(3 lane) Divided highway
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(4 lane) Divided highway
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Ferries
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Foot paths
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Fords (river)
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Gravel (non-surfaced roads)
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Interchanges Jeep trails and woods roads
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Lock structures
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Overpasses and underpasses
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Radio and television towers
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Railroad (ROW)
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Railroad terminals and switchyards
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State highways
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(2 lane) Divided highway
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(3 lane) Divided highway
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(4 lane) Divided highway
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Timber yarding
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Traffic circles
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Trucking terminals
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to the Features Index
Urban Features
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Apartment houses
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Armories
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Athletic fields
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Auditoriums
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Automobile sales
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Bus terminals
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Canals
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Canals (drainage)
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Capitols
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Cemeteries
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Central Business District
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Churches
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City blocks
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City and Town Halls
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Civic centers
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Colleges
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Community Centers
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Country Clubs
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Court Houses
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Courtyards
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Drive-in theaters
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Factories
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Factory buildings
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Garages (storage, and service)
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Gasoline stations (service stations)
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Golf Courses
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Hospitals
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Hotels
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Industrial complexes
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Junkyards
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Libraries
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Medical Centers
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Memorials
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Mobile homes
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Monuments and statues
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Mosques
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Motels
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Museums
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Open areas
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Parks and playgrounds
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Post Offices
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Power plants
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Prisons
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Private Schools
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Public Schools
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Race tracks
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Rapid transit facilities
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Recreation areas
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Recreational centers
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Refineries
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Rest Homes
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Restaurants
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Roller Rinks
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Schools (K-12, etc)
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Shopping centers
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Shopping districts
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Stadiums
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Stock yards
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Tennis Courts
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Universities
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Vacant lots
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Warehouses
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to the Features Index
Water and Shoreline Features
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Abandoned aqueduct, canal, etc.
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Aqueduct tunnel
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Bare rock
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Beaches
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Bogs
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Canal locks
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Canals (navigable)
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Coastal bays or inlets
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Coral reefs
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Deltas
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Ditches
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Dry lakes or ponds
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Elevated aqueduct or conduit
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Falls
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Fish hatcheries
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Flood plains
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Gauging stations
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Inundated areas
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Intermittent lakes or ponds
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Lakes (large)
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Marshes
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Mud flats
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Perennial lakes or ponds
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Perennial streams and rivers
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Ponds
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Rapids
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Sand bars
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Sea walls
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Shorelines
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Sinkholes
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Submerged areas
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Swamps
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Tidal pools
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Washes
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Water wells
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Wetlands
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Wooded marsh
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Wooded swamps
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Features Index
See how features are measured.
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All contents copyright (C)
1993-1999, D. Fehler All
rights reserved.
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