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Boat Launch Facilities

Tags
structure, society, transportation, recreation, public access, boat launch, emergency preparedness, infrastructure


Summary

BOATLNCH provides digital mapping of Maine boating facilities on both coastal and inland waters, and shows the locations of state-managed and state-assisted boat launches in Maine.

Description

BOATLNCH depicts state-managed and state-assisted boating facility locations throughout Maine at 1:24000 scale or better recorded by the Boating Facilities Division of the Bureau of Parks & Lands. Maine's Bureau of Parks and Lands, Maine's Department of Inland Fisheries & Wildlife and land owners provide access to lakes, ponds, rivers, and the coast at 547 locations. Sites may have gravel or hard-surfaced ramps and may include boarding floats, rest rooms and picnic tables. A few sites have canoe or carry-in access only. Some ramps on tidal waters may be useable only at high tides and are designated "part-tide" facilities. A brochure listing all the boat launches is available by calling (207) 287-4952 or you can view an online version at http://www.maine.gov/doc/parks/programs/boating/index.html .

Credits

Credit should always be given to the data source and/or originator when the data is transferred or printed.

Use limitations

Extent

West  -71.108873    East  -66.891463
North  47.356939    South  43.082382

Scale Range
Maximum (zoomed in)  1:5,000
Minimum (zoomed out)  1:150,000,000

ArcGIS Metadata 

Topics and Keywords 

Themes or categories of the resource  structure, transportation


*Content type  Downloadable Data
Export to FGDC CSDGM XML format as Resource Description No

Citation 

*Title GISVIEW.MEGIS.boatlnch_new
Publication date 2014-08-19 00:00:00


Presentation formats  digital map
FGDC geospatial presentation format  vector digital data, vector digital data


Citation Contacts 

Responsible party
Organization's name (MEDACF) Maine Department of Agriculture, Conservation and Forestry, Bureau of Parks & Lands
Contact's position Boating Facilities Program – Director
Contact's role  originator


Contact information
Phone
Voice 207-287-4952

Address
Type postal
Delivery point SHS 22
City Augusta
Administrative area Maine
Postal code 04333
Country US

Hours of service Monday through Friday 0800-1700 EST


Resource Details 

Dataset languages  English (UNITED STATES)
Dataset character set  utf8 - 8 bit UCS Transfer Format


Status  completed
Spatial representation type  vector


*Processing environment Microsoft Windows Server 2003 Version 5.2 (Build 3790) Service Pack 2; Esri ArcGIS 10.1.1.3143


Credits
Credit should always be given to the data source and/or originator when the data is transferred or printed.
ArcGIS item properties
*Name GISVIEW.MEGIS.boatlnch_new
*Location Server=sql-gisview-prod.som.w2k.state.me.us; Service=sde:sqlserver:sql-gisview-prod.som.w2k.state.me.us,1633; Database=GISVIEW; User=MEGIS; Version=dbo.DEFAULT
*Access protocol ArcSDE Connection

Extents 

Extent
Geographic extent
Bounding rectangle
West longitude -71.103885
East longitude -66.896451
South latitude 43.082382
North latitude 47.231205

Extent
Geographic extent
Bounding rectangle
Extent type  Extent used for searching
*West longitude -71.108873
*East longitude -66.891463
*North latitude 47.356939
*South latitude 43.082382
*Extent contains the resource Yes

Extent in the item's coordinate system
*West longitude 340687.096200
*East longitude 659287.492600
*South latitude 4771822.156500
*North latitude 5244830.691000
*Extent contains the resource Yes

Resource Maintenance 

Resource maintenance
Update frequency  annually


Resource Constraints 

Legal constraints
Limitations of use
See access and use constraints information.

Spatial Reference 

ArcGIS coordinate system
*Type Projected
*Geographic coordinate reference GCS_North_American_1983
*Projection NAD_1983_UTM_Zone_19N
*Coordinate reference details
Projected coordinate system
Well-known identifier 26919
X origin -5120900
Y origin -9998100
XY scale 10000
Z origin 0
Z scale 1
M origin 0
M scale 1
XY tolerance 0.001
Z tolerance 0.001
M tolerance 0.001
High precision true
Latest well-known identifier 26919
Well-known text PROJCS["NAD_1983_UTM_Zone_19N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-69.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26919]]

Reference system identifier
*Value 26919
*Codespace EPSG
*Version 7.11.2


Spatial Data Properties 

Vector
*Level of topology for this dataset  geometry only


Geometric objects
Feature class name GISVIEW.MEGIS.boatlnch_new
*Object type  point
*Object count 547



ArcGIS Feature Class Properties
Feature class name GISVIEW.MEGIS.boatlnch_new
*Feature type Simple
*Geometry type Point
*Has topology FALSE
*Feature count 547
*Spatial index TRUE
*Linear referencing FALSE



Lineage 

Process step
Description The process used to update the information was corrections by field staff, site visits or inspections using gps equipment to capture Lat/Long. Additionally, knowledgeable filed staff located the information with on screen digitizing or using the NAIP 2011 imagery as a background




Geoprocessing history 

Process
Process name
Date 2014-02-26 09:54:12
Tool location c:\arcgis\desktop10.1\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
FeatureClassToFeatureClass U:\projects\structures\NSD.mdb\boatlnch "Database Connections\GISVIEW.sde" boatlnch_new # "FILE_NO "FILE_NO" true false false 8 Double 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,FILE_NO,-1,-1;WATER_BODY "WATER_BODY" true false false 27 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,WATER_BODY,-1,-1;MCD "MCD" true false false 20 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,MCD,-1,-1;COUNTY "COUNTY" true false false 12 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,COUNTY,-1,-1;OWNSHIP "OWNSHIP" true false false 32 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,OWNSHIP,-1,-1;S_or_L "S_or_L" true false false 5 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,S_or_L,-1,-1;TYPERAMP "TYPERAMP" true false false 16 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,TYPERAMP,-1,-1;LNGTRAMP "LNGTRAMP" true false false 4 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,LNGTRAMP,-1,-1;WIDRAMP "WIDRAMP" true false false 3 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,WIDRAMP,-1,-1;GRADE "GRADE" true false false 5 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,GRADE,-1,-1;TYPE "TYPE" true false false 2 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,TYPE,-1,-1;TIDE_COMBO "TIDE_COMBO" true false false 14 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,TIDE_COMBO,-1,-1;FLOATS "FLOATS" true false false 3 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,FLOATS,-1,-1;FEE "FEE" true false false 3 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,FEE,-1,-1;RIGPARK "RIGPARK" true false false 8 Double 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,RIGPARK,-1,-1;VEHPARK "VEHPARK" true false false 8 Double 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,VEHPARK,-1,-1;TOILETS "TOILETS" true false false 8 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,TOILETS,-1,-1;ADA "ADA" true false false 16 Text 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,ADA,-1,-1;Latitude "Latitude" true false false 8 Double 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,Latitude,-1,-1;Longitude "Longitude" true false false 8 Double 0 0 ,First,#,U:\projects\structures\NSD.mdb\boatlnch,Longitude,-1,-1" #
Include in lineage when exporting metadata No


Distribution 

Distributor
Contact information
Organization's name Maine Office of Geographic Information Systems
Contact's position GIS Coordinator
Contact's role  distributor


Contact information
Phone
Voice 207-624-7700

Address
Type postal
Delivery point State House Station #145
City Augusta
Administrative area Maine
Postal code 04333
Country USA
e-mail addressOIT.Customer-Support@maine.gov

Hours of service 9 am to 5 pm EST
Contact instructions
Monday through Friday


Available format
Name SDE Feature Class
Version Arc 10.x


Available format
Name ESRI Shapefile
Version ARC Version 10.x
File decompression technique Data available from this website is in .zip compressed format
Format information content MEGIS publishes all vector layers in the Maine GIS Internet Data Catalog in ESRI's shapefile format. A shapefile is a simple non-topological format that stores the geometry and attribute information for a set of geographic features as a set of vector (point, line, polygon) coordinates. Shapefiles draw quickly and directly in ArcView, ArcGIS and ArcExplorer. Shapefiles are a compatible data type for many other types of GIS software. Three files are fundamental to each shapefile: .shp stores the feature geometry (shape and location information); .shx stores the index of the feature geometry; .dbf a dBASE (TM) file stores the attribute information for the features. Other index files may be created to help speed analysis and query: these file formats are .sbn .sbx .ain .aix .fbn and .fbx. In addition you may find projection .prj and metadata .xml, files associated with shapefiles.


Transfer options
Online source
Location Wide Area Network - WAN
Description  Access is available through Maine's wide area network; WAN users may contact the Maine Office of Information Technology, Maine Office of Geographic Information Systems for a login

Transfer options
Online source
Locationhttp://www.maine.gov/megis/catalog/
Name MEGIS Data Catalog
Description  public access to digital geographic data
Function performed  download



Distribution format
*Name SDE Feature Class


Fields 

Details for object GISVIEW.MEGIS.boatlnch_new 
*Type Feature Class
*Row count 547
Definition
point feature class
Definition source
Environmental Systems Research Institute, Inc. (ESRI)


Field TOILETS
 
*Alias TOILETS
*Data type String
*Width 8
*Precision 0
*Scale 0
Field description
toilet facilities
Description source
MEDOCBPL Boating Facilities Division
Measurement frequency  as needed




Field TIDE_COMBO
 
*Alias TIDE_COMBO
*Data type String
*Width 14
*Precision 0
*Scale 0
Field description
tidal conditions that effect boat ramp use
Description source
MEDOCBPL Boating Facilities Division


Field S_OR_L
 
*Alias S_or_L
*Data type String
*Width 5
*Precision 0
*Scale 0
Field description
state or local ownership
Description source
MEDOCBPL Boating Facilities Division


Field SHAPE
 
*Alias Shape
*Data type Geometry
*Width 4
*Precision 0
*Scale 0
Field description
Feature geometry.
Description source
ESRI
Description of values Coordinates defining the features.




Field WIDRAMP
 
*Alias WIDRAMP
*Data type String
*Width 3
*Precision 0
*Scale 0
Field description
width of boat ramp in feet
Description source
MEDOCBPL Boating Facilities Division


Field WATER_BODY
 
*Alias WATER_BODY
*Data type String
*Width 27
*Precision 0
*Scale 0
Field description
name of the pond, lake, or river where the boating launch is located
Description source
MEDOCBPL Boating Facilities Division


Field TYPERAMP
 
*Alias TYPERAMP
*Data type String
*Width 16
*Precision 0
*Scale 0
Field description
surface type of boat ramp
Description source
MEDOCBPL Boating Facilities Division


Field LATITUDE
 
*Alias Latitude
*Data type Double
*Width 8
*Precision 38
*Scale 8
Field description
latitude in decimal degrees
Description source
MEDOCBPLBFD GPS


Field FLOATS
 
*Alias FLOATS
*Data type String
*Width 3
*Precision 0
*Scale 0
Field description
floats
Description source
MEDOCBPL Boating Facilities Division


Field FILE_NO
 
*Alias FILE_NO
*Data type Double
*Width 8
*Precision 38
*Scale 8
Field description
unique ID assigned and maintained for each boat launch site by the Boating Facilities Division of the Bureau of Parks & Lands
Description source
MEDOCBPL Boating Facilities Division


Field FEE
 
*Alias FEE
*Data type String
*Width 3
*Precision 0
*Scale 0
Field description
fee assessed
Description source
MEDOCBPL Boating Facilities Division
List of values
Value X
Description fee




Field OWNSHIP
 
*Alias OWNSHIP
*Data type String
*Width 32
*Precision 0
*Scale 0
Field description
the entity owning the facility and/or the land it sits on.
Description source
MEDOCBPL Boating Facilities Division
Description of values Usually a town name. Also a corporation, state agency or other entity.




Field MCD
 
*Alias MCD
*Data type String
*Width 20
*Precision 0
*Scale 0
Field description
town or reservation name as listed in "Standard Geographic Code for Maine Minor Civil Divisions"
Description source
For a current digital copy of "Standard Geocodes for Maine Minor Civil Divisions" in .dbf or comma delimited text format see http://megis.maine.gov/catalog "Tables".


Field VEHPARK
 
*Alias VEHPARK
*Data type Double
*Width 8
*Precision 38
*Scale 8
Field description
parking capacity suitable for vehicles only
Description source
MEDOCBPL Boating Facilities Division
Range of values
Minimum value 0
Maximum value 99
Units of measure parking places



Field LNGTRAMP
 
*Alias LNGTRAMP
*Data type String
*Width 4
*Precision 0
*Scale 0
Field description
length of boat ramp in feet
Description source
MEDOCBPL Boating Facilities Division
Measurement frequency  as needed




Field GRADE
 
*Alias GRADE
*Data type String
*Width 5
*Precision 0
*Scale 0
Field description
grade of ramp in degrees of slope
Description source
MEDOCBPL Boating Facilities Division


Field OBJECTID
 
*Alias OBJECTID
*Data type OID
*Width 4
*Precision 10
*Scale 0
Field description
Internal feature number.
Description source
ESRI
Description of values Sequential unique whole numbers that are automatically generated.




Field RIGPARK
 
*Alias RIGPARK
*Data type Double
*Width 8
*Precision 38
*Scale 8
Field description
parking capacity suitable for vehicle/trailer combinations
Description source
MEDOCBPL Boating Facilities Division
Range of values
Minimum value 0
Maximum value 60
Units of measure parking spaces



Field TYPE
 
*Alias TYPE
*Data type String
*Width 2
*Precision 0
*Scale 0
Field description
type of boat ramp
Description source
MEDOCBPL Boating Facilities Division


Field ADA
 
*Alias ADA
*Data type String
*Width 16
*Precision 0
*Scale 0
Field description
access to facility for persons with disability
Description source
Americans with Disabilities Act, Public Law 336 of the 101st Congress, enacted July 26, 1990
Measurement frequency  as needed




Field COUNTY
 
*Alias COUNTY
*Data type String
*Width 12
*Precision 0
*Scale 0
Field description
Maine county name
Description source
For a current digital copy of Maine counties and county codes (NIST FIPS 55-3), in .dbf or comma delimited text format see http://megis.maine.gov/catalog "Tables" link.


Field LONGITUDE
 
*Alias Longitude
*Data type Double
*Width 8
*Precision 38
*Scale 8
Field description
longitude in decimal degrees
Description source
MEDOCBPLBFD GPS




Overview Description
Entity and Attribute Overview BOATLNCH contains attributes that describe location, waterbody, access, and facilities at the boat launch. These include: LONGITUDE, LATITUDE, GEOCODE, MCD, COUNTY, WATERBODY, TYPE of RAMP surface, width, length and grade, TYPE, FLOATS, FEES, FACILITY, MIDAS number, FILE_No, OWNERSHIP, S_Or_L, TIDE COMBO, RIGPARKING, VEHICLE PARKING, ADA, YEAR IN USE,LAT/LONG SOURCE, and LAT/LONG CONFIDENCE. Some town names used by the originator do not correspond to standard common names, as listed in "Standard Geographic Codes for Maine Minor Civil Divisions", 1971. The field MCD was added to list the standard common names used in Maine GIS data sets. MIDAS numbers have been compared for accuracy to MDIFW/MEDEP MIDAS update 2003. MEDEP hydrography names can be related using the MIDAS number. Hydrography feature names in BOATLNCH are those assigned by MEDOCBPL Boating Facilities Division and do not necessarily correspond with either USGS GNIS names or MEDEP hydrography names.


Entity and Attribute Detail Citation The ArcView shapefile and ArcGIS geodatabase formats, commonly used for Maine GIS data, carry default identifiers and attributes that are software generated and/or important for internal recordkeeping. These are listed here to avoid repetition for every layer, and may not be repeated in the attribute descriptions and definitions of each layer. Common software generated identifiers and attributes in Maine GIS data include: FID (feature identifier), Shape (feature geometry), OBJECTID and SHAPE_length. In addition, most GIS formats will carry fields for PERIMETER, AREA and/or LENGTH according to feature geometry. These fields are typically available by default, with the units based on coordinate system or projection units of GIS data. Most GIS software packages also provide a means to calculate these values. It is important to test any columns containing PERIMETER, AREA or LENGTH values before using them for analysis purposes. These important values can be carried from format to format and become out-dated. Verify that the values are correct. Also, in your GIS software, please view the properties of data layers for the map units used to calculate these fields, and for the units set for display purposes.




Metadata Details 

Metadata language English (UNITED STATES)
Metadata character set  utf8 - 8 bit UCS Transfer Format


Scope of the data described by the metadata  dataset
Scope name* dataset


*Last update 2014-02-26


ArcGIS metadata properties
Metadata format ArcGIS 1.0
Metadata style FGDC CSDGM Metadata
Standard or profile used to edit metadata FGDC


Created in ArcGIS for the item 2013-11-07 11:32:12
Last modified in ArcGIS for the item 2014-02-26 13:31:54


Automatic updates
Have been performed Yes
Last update 2014-02-26 13:31:19


Metadata Contacts 

Metadata contact
Organization's name (MEDACF) Maine Department of Agriculture, Conservation and Forestry, Bureau of Parks & Lands
Contact's position Boating Facilities Program – Director
Contact's role  point of contact


Contact information
Phone
Voice 207-287-4952

Address
Type postal
Delivery point SHS 22
City Augusta
Administrative area Maine
Postal code 04333
Country US

Hours of service Monday through Friday 0800-1700 EST


FGDC Metadata (read-only) 

Entities and Attributes 

Detailed Description
Entity Type
Entity Type LabelGISVIEW.MEGIS.boatlnch_new
Entity Type Definition
point feature class
Entity Type Definition SourceEnvironmental Systems Research Institute, Inc. (ESRI)

Attribute
Attribute LabelTOILETS
Attribute Definition
toilet facilities
Attribute Definition SourceMEDOCBPL Boating Facilities Division
Attribute Measurement Frequency
                                as needed
                              

Attribute
Attribute LabelTIDE_COMBO
Attribute Definition
tidal conditions that effect boat ramp use
Attribute Definition SourceMEDOCBPL Boating Facilities Division

Attribute
Attribute LabelS_OR_L
Attribute Definition
state or local ownership
Attribute Definition SourceMEDOCBPL Boating Facilities Division

Attribute
Attribute LabelSHAPE
Attribute Definition
Feature geometry.
Attribute Definition SourceESRI
Attribute Domain Values
Unrepresentable Domain
Coordinates defining the features.

Attribute
Attribute LabelWIDRAMP
Attribute Definition
width of boat ramp in feet
Attribute Definition SourceMEDOCBPL Boating Facilities Division

Attribute
Attribute LabelWATER_BODY
Attribute Definition
name of the pond, lake, or river where the boating launch is located
Attribute Definition SourceMEDOCBPL Boating Facilities Division

Attribute
Attribute LabelTYPERAMP
Attribute Definition
surface type of boat ramp
Attribute Definition SourceMEDOCBPL Boating Facilities Division

Attribute
Attribute LabelLATITUDE
Attribute Definition
latitude in decimal degrees
Attribute Definition SourceMEDOCBPLBFD GPS

Attribute
Attribute LabelFLOATS
Attribute Definition
floats
Attribute Definition SourceMEDOCBPL Boating Facilities Division

Attribute
Attribute LabelFILE_NO
Attribute Definition
unique ID assigned and maintained for each boat launch site by the Boating Facilities Division of the Bureau of Parks & Lands
Attribute Definition SourceMEDOCBPL Boating Facilities Division

Attribute
Attribute LabelFEE
Attribute Definition
fee assessed
Attribute Definition SourceMEDOCBPL Boating Facilities Division
Attribute Domain Values
Enumerated Domain
Enumerated Domain ValueX
Enumerated Domain Value Definition
fee

Attribute
Attribute LabelOWNSHIP
Attribute Definition
the entity owning the facility and/or the land it sits on.
Attribute Definition SourceMEDOCBPL Boating Facilities Division
Attribute Domain Values
Unrepresentable Domain
Usually a town name. Also a corporation, state agency or other entity.

Attribute
Attribute LabelMCD
Attribute Definition
town or reservation name as listed in "Standard Geographic Code for Maine Minor Civil Divisions"
Attribute Definition SourceFor a current digital copy of "Standard Geocodes for Maine Minor Civil Divisions" in .dbf or comma delimited text format see http://megis.maine.gov/catalog "Tables".

Attribute
Attribute LabelVEHPARK
Attribute Definition
parking capacity suitable for vehicles only
Attribute Definition SourceMEDOCBPL Boating Facilities Division
Attribute Domain Values
Range Domain
Range Domain Minimum0
Range Domain Maximum99
Attribute Units of Measureparking places

Attribute
Attribute LabelLNGTRAMP
Attribute Definition
length of boat ramp in feet
Attribute Definition SourceMEDOCBPL Boating Facilities Division
Attribute Measurement Frequency
                                as needed
                              

Attribute
Attribute LabelGRADE
Attribute Definition
grade of ramp in degrees of slope
Attribute Definition SourceMEDOCBPL Boating Facilities Division

Attribute
Attribute LabelOBJECTID
Attribute Definition
Internal feature number.
Attribute Definition SourceESRI
Attribute Domain Values
Unrepresentable Domain
Sequential unique whole numbers that are automatically generated.

Attribute
Attribute LabelRIGPARK
Attribute Definition
parking capacity suitable for vehicle/trailer combinations
Attribute Definition SourceMEDOCBPL Boating Facilities Division
Attribute Domain Values
Range Domain
Range Domain Minimum0
Range Domain Maximum60
Attribute Units of Measureparking spaces

Attribute
Attribute LabelTYPE
Attribute Definition
type of boat ramp
Attribute Definition SourceMEDOCBPL Boating Facilities Division

Attribute
Attribute LabelADA
Attribute Definition
access to facility for persons with disability
Attribute Definition SourceAmericans with Disabilities Act, Public Law 336 of the 101st Congress, enacted July 26, 1990
Attribute Measurement Frequency
                                as needed
                              

Attribute
Attribute LabelCOUNTY
Attribute Definition
Maine county name
Attribute Definition SourceFor a current digital copy of Maine counties and county codes (NIST FIPS 55-3), in .dbf or comma delimited text format see http://megis.maine.gov/catalog "Tables" link.

Attribute
Attribute LabelLONGITUDE
Attribute Definition
longitude in decimal degrees
Attribute Definition SourceMEDOCBPLBFD GPS

Overview Description
Entity and Attribute Overview
                            BOATLNCH contains attributes that describe location, waterbody, access, and facilities at the boat launch. These include: LONGITUDE, LATITUDE, GEOCODE, MCD, COUNTY, WATERBODY, TYPE of RAMP surface, width, length and grade, TYPE, FLOATS, FEES, FACILITY, MIDAS number, FILE_No, OWNERSHIP, S_Or_L, TIDE COMBO, RIGPARKING, VEHICLE PARKING, ADA, YEAR IN USE,LAT/LONG SOURCE, and LAT/LONG CONFIDENCE. Some town names used by the originator do not correspond to standard common names, as listed in "Standard Geographic Codes for Maine Minor Civil Divisions", 1971. The field MCD was added to list the standard common names used in Maine GIS data sets. MIDAS numbers have been compared for accuracy to MDIFW/MEDEP MIDAS update 2003. MEDEP hydrography names can be related using the MIDAS number. Hydrography feature names in BOATLNCH are those assigned by MEDOCBPL Boating Facilities Division and do not necessarily correspond with either USGS GNIS names or MEDEP hydrography names.
                          
Entity and Attribute Detail Citation
                            The ArcView shapefile and ArcGIS geodatabase formats, commonly used for Maine GIS data, carry default identifiers and attributes that are software generated and/or important for internal recordkeeping. These are listed here to avoid repetition for every layer, and may not be repeated in the attribute descriptions and definitions of each layer. Common software generated identifiers and attributes in Maine GIS data include: FID (feature identifier), Shape (feature geometry), OBJECTID and SHAPE_length. In addition, most GIS formats will carry fields for PERIMETER, AREA and/or LENGTH according to feature geometry. These fields are typically available by default, with the units based on coordinate system or projection units of GIS data. Most GIS software packages also provide a means to calculate these values. It is important to test any columns containing PERIMETER, AREA or LENGTH values before using them for analysis purposes. These important values can be carried from format to format and become out-dated. Verify that the values are correct. Also, in your GIS software, please view the properties of data layers for the map units used to calculate these fields, and for the units set for display purposes.