Description:
Abstract: Outer boundary of the New York State Adirondack Park. The data set was hand
digitized from 1:24000 scale, 7.5 minute series planimetric, mylar original, New
York State Department of Transportation maps. The digitized boundary was edgematched
with older planimetric quadrangle delineations being snapped to newer adjacent
quadrangles. The boundary was compared to the legal Park description (Environmental
Conservation Law Section 9-0101); the "New York State Department of Environmental
Conservation Division of Lands and Forests Adirondack Map" 1993 edition; a joint
DEC/DOT 1:24000 scale mapping project to delineate original allotment lines
(patents, townships, tracts, etc.) in Essex, Hamilton, Warren, Washington, and
Saratoga Counties; and county Real Property Tax Maps. Where obvious discrepancies
occurred, Adirondack Park Agency cartographers re-plotted the boundary at 1:24000
scale using visual reference points on the maps and then re-digitized. Certain
sections of the boundary remain in question (see Notes.)
Purpose: Use as a clipping polygon or as a set of arcs delimiting the park.
Supplemental_Information: Digitizing -- Original mylar chronoflex 7.5 Minute Series Planimetric
quadrangle maps, purchased from New York State Dept. of Transportation were
digitized. The publication date of the 200 maps varied from mid-1960's to the
mid-1980's. APA staff digitized maps on a Calcomp 9100 table into Arc/Info 5.0 on a
Prime 4050, operating system Primos 22.0. Map transformation to UTM zone 18 occurred
at digitizing setup. The maximum RMS error target was 0.003 inches. No actual RMS
error value for each map setup was retained. Coverage tics at quadrangle corners
were generated from data set "NYTM Coordinates 11/22/89" purchased from NYSDOT -
Mapping Services Bureau, reputed to provide one tenth meter accuracy. All municipal
boundary lines were digitized, including the Adirondack Park boundary. Arc nodes
were digitized at line intersections, lines that appeared straight over long
distances had vertices digitized at approximately five inch intervals. Arcs were
digitized into one park coverage. Arc snap and node snap tolerances were set to five
meters, intersect arcs set on. Editing -- The digitized boundaries were manually
edgematched in Arcedit with older planimetric quadrangle delineations being snapped
to newer, adjacent quadrangles. All polygons were closed regardless of the edge-
match blunder. Where these errors occurred, vertices for long boundary were adjusted
to straighten lines (reviewed with all available sources) between municipal boundary
intersections. Polygon and arc topology were built, polygon labels were computer
generated. The Adirondack Park boundary was reselected from the municipal boundary
coverage to create a new separate coverage. Original arc nodes were removed in
Arcedit by unsplitting all arcs. New nodes were placed to split the state boundary
from the remaining park boundary. Two additional nodes were computer generated due
to a 500 vertices per arc software limitation. One polygon label was computer
generated, polygon and arc topology were built. An item called BND-CD was added to
the arc attribute table to distinguish the state boundary from the remaining park
boundary. The coverage was imported to a UNIX Data General workstation. The coverage
map projection was defined. Quality Control -- Some boundary adjustments were made
for sections noted under Notes as per review of additional source information.
Revisions made to data: Various revisions were made as per reviews cited. Reviews
applied to data: Spatial review of arcs for completeness and closure -- 199103, John
W. Barge. Spatial review of arcs in comparison to ECL sec. 9-0101. (legal
description of Adirondack Park boundary) -- ongoing as needed, John W. Barge.
Spatial review of arcs in comparison to the DEC/DOT original allotment line maps --
1991, John W. Barge Spatial review of arcs in comparison to County Tax Maps --
ongoing as needed, John W. Barge, Susan H. Parker. Related spatial and tabular data
sets and programs: New York State Adirondack Park Municipal Boundaries Arc/Info
coverage. New York State Adirondack Park 7.5 Minute Quadrangle Boundaries Arc/Info
coverage. References cited: New York State Environmental Conservation Law Section
9-0101. Notes: Certain sections of the delineated boundary remain in question. Known
ambiguities exist in the towns of Pitcairn, St. Lawrence Co. Diana, Lewis Co.; Lake
Luzerne, Warren Co.; and Altona and Saranac, Clinton Co. Ambiguities are resolved on
a case-by-case basis. Contact the Adirondack Park Agency for further
information.
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: Adirondack Park Boundary
Theme_Keyword: Blue Line
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: boundaries
Theme:
Theme_Keyword_Thesaurus: CUGIR Category
Theme_Keyword: boundaries
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Adirondack Park
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: John W. Barge
Contact_Organization: New York (State). Adirondack Park Agency.
Contact_Position: Senior Natural Resource Planner
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 99
City: Ray Brook
State_or_Province: NY
Postal_Code: 12977
Country: USA
Contact_Voice_Telephone: 518-891-4050
Contact_TDD/TTY_Telephone:
Contact_Facsimile_Telephone: 518-891-3938
Contact_Electronic_Mail_Address:
Hours_of_Service: 9-5 EST
Contact_Instructions: Street address is Adirondack Park Agency, Route 86
Cross_Reference:
Citation_Information:
Originator: New York State Department of Transportation, Mapping Services
Bureau
Publication_Date: 1960s to 1980s
Publication_Time:
Title: 7.5 Minute Series Planimetric
Edition:
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: 7.5 Min. Planimetric
Issue_Identification: many
Publication_Information:
Publication_Place: Albany, NY
Publisher: NYS Dept. of Transportation