| THEME: | County Boundaries - Statewide |
| THEME ID: | 2021 |
| CATEGORY: | Administrative; |
| ABSTRACT: | This theme shows the county boundaries for the State of Ohio. Boundaries were assembled from individual USGS Quadrangle digital line graph files (dlg) of the boundary layer (bd). These files were obtained from the GIS Support Center, Ohio Department of Administrative Services and were originally prepared by the Ohio State University Center for Mapping in cooperation with the United States Geological Survey with additional funding from several state agencies and other groups. These files were augmented in a few instances with hand digitizing where small missing line segments were found. The Lake Erie shoreline and islands in Lake Erie were added from the Hydrography layer (hy). It should be noted that because the quadrangles used varied over a wide rangle of years this line does not represent a particular water level and is for illustrative purposes only. For example there is a wide offset between the shoreline on the Metzger Marsh Quadrangle and that of the Oak Harbor Quadrangle. This distance is so large that no attempt was made to edgematch the two quadrangles. The line connecting the two shorelines represents the quadrangle boundary. For the purposes of this map Sandusky Bay and Muddy Creek Bay were included as a part of Lake Erie. The Lake Erie shoreline is not meant to represent any Lake Erie shoreline which may be used for regulatory puposes. An updated boundary for Fairfield-Licking-Perry Counties within Buckeye Lake was included by digitizing the boundary from a more recently updated quadrangle map. Conversion from the dlg format to ArcInfo was accomplished using ArcInfo software in conjuction with an AML program to adjust the quadrangles so that their corners fall on the exact coordinates of the quadrangle corners. Due to the way in wihich coordinates are stored in the dlg's there is some variation in the quadrangle corner coordinates. |
CONTACT INFORMATION
|
Raymond M Lohrer, Information Services Planner Ohio Department of Natural Resources Division of REAL ESTATE & LAND MANAGEMENT Resource Analysis Section 1952 Belcher Dr, Bldg C-2 Columbus, OH 43224 |
Telephone: Fax: Email: |
614 265-1044 267-2981 Mike.Lohrer@dnr.state.oh.us |
TRANSFER INFORMATION
Transfer Mode:
FTP;
Transfer Instructions: Call, write or fax contact person for instructions
LOCATION INFORMATION
| Quadrangle | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| All Quads |
PROJECT AREA: Statewide
BOUNDING COORDINATES: (lat/long in decimal degrees)
| WEST: NORTH: |
84.821 41.980 |
EAST: SOUTH: |
80.501 38.400 |
DATA DESCRIPTION
DATA FILE NAME: ohiobd3.e00 Download this self-extracting zip file.
| Source Name | Source Scale | Date Of Material |
|---|---|---|
| Eastern Ohio 1:24000 Scale DLG Files, GIS Support Center, Ohio DAS | 1:24000 | 5/15/1999 |
| Northwestern Ohio DLG Files, GIS Support Center, Ohio DAS | 1:24000 | 4/15/1999 |
| Ohio 1:24000 Scale DLG Files North, GIS Support Center Ohio DAS | 1:24000 | 2/15/1998 |
| Ohio 1:24000 Scale DLG Files, South, GIS Support Center, Ohio DAS | 1:24000 | 2/15/1998 |
| Thornville Quadrangle, Ohio 7.5 Minute Series (Topographic) , United States Geological Survey | 1:24000 | 6/30/1992 |
THEME AUTHOR: Terry L Wells
| PURPOSE: | This coverage will be used as a base map for mapping statewide variables and as the base to be used for individual county project boundaries. |
|
PUBLICATION DATE: FREQUENCY OF UPDATE: CURRENCY OF DATE: DEGREE OF COMPLETENESS: |
3/9/2000 N/A 1999 100 |
DATA FORMAT INFORMATION
DATA TYPE / DATA FORMAT / STATUS:
[GIS COVERAGE: DIGITAL - FINAL ]
SOFTWARE INFORMATION
|
PRESENTATION MODEL: TRANSFER FORMATS: PRECISION: MINIMUM MAPPING UNIT: CELL SIZE: NATIVE DATABASE SIZE: |
VECTOR - TOPOLOGIC ARC/INFO EXPORT Double N/A N/A 1.9 |
PROJECT INFORMATION
|
PROJECTION/COORDINATE SYSTEM NAME: ZONE NAME OR NUMBER: PROJECTION UNITS: HORIZONTAL DATUM: VERTICAL DATUM: POSITIONAL ACCURACY: |
Ohio State Plane OHIO SOUTH ZONE (3402) Feet (State Plane Using NAD 27 or NAD 83) North American Datum of 1927 (NAD 27) None 40 ft. |
DATA BASE/DATA SET INFORMATION
DATABASE TABLE NAME: ohiobd3.pat
| ITEM NAME | TYPE | OTHER TYPE | WIDTH | DESCRPTION |
|---|---|---|---|---|
| COUNTY | Char |
11 | County Name | STATUS | Bin |
15 | Indicates land versus Lake Erie |
| TABLE NAME: ohiobd3.pat | ITEM NAME: COUNTY |
| CODE | DESCRPTION |
|---|---|
| Adams | Allen | Ashland | Ashtabula | Athens | Auglaize | Belmont | Brown | Butler | Carroll | Champaign | Clark | Clermont | Clinton | Columbiana | Coshocton | Crawford | Cuyahoga | Darke | Defiance | Delaware | Erie | Fairfield | Fayette | Franklin | Fulton | Gallia | Geauga | Greene | Guernsey | Hamilton | Hancock | Hardin | Harrison | Henry | Highland | Hocking | Holmes | Huron | Jackson | Jefferson | Knox | Lake | Lawrence | Licking | Logan | Lorain | Lucas | Madison | Mahoning | Marion | Medina | Meigs | Mercer | Miami | Monroe | Montgomery | Morgan | Morrow | Muskingum | Noble | Ottawa | Paulding | Perry | Pickaway | Pike | Portage | Preble | Putnam | Richland | Ross | Sandusky | Scioto | Seneca | Shelby | Stark | Summit | Trumbull | Tuscarawas | Union | Van Wert | Vinton | Warren | Washington | Wayne | Williams | Wood | Wyandot |
| TABLE NAME: ohiobd3.pat | ITEM NAME: STATUS |
| CODE | DESCRPTION |
|---|---|
| Island | Islands within Lake Erie | Lake Erie | Waters of Lake Erie including Sandusky Bay and Muddy Creek Bay | Land | County areas other than waters of Lake Erie and islands in Lake Erie |
| Liability Statement: | The Ohio Department of Natural Resources (DNR) provides this geographic data "as is." DNR makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. DNR further makes no warranties, either expressed or implied, as to the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers of DNR, no warranty, expressed or implied, is made by DNR regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty. In no event shall the DNR have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data. |