Identification_Information: Citation: Citation_Information: Originator: Computer Terrain Mapping, Inc. Publication_Date: 2005 Title: Alpine Loop Road Proximity Geospatial_Data_Presentation_Form: map Description: Abstract: The Alpine Loop Road Proximity data set shows the proximity to access roads along the Loop. This data set is one of the development constraints used to determine Development Potential. Areas close to existing roadways generally have easier access and were deemed to have proportionately higher development potential than areas more distant from roadways. All public roads in the Alpine Loop study area were used in the calculation. Buffers of 400m (~1/4 mile), 800m (~1/2 mile) and 1600m (~ 1 mile) were created around each roadway to represent increasingly more difficult access to a property. The constraint rankings were as follows: 0: no constraint: < 400m 1: low constraint: 400 – 800 m from roadway 2: medium constraint: 800 – 1600 m from roadway 3: high constraint: > 1600 m from roadway Purpose: The Alpine Loop Spatial Analysis and Mapping Project inventoried natural and cultural resources and identified important areas where overlapping resources occur. The results from this project will provide an opportunity for area stakeholders - landowners, outdoor enthusiasts, surrounding communities, federal government agencies and local and national preservation groups - to come together to find solutions that maintain the Alpine Loop experience for future visitors and residents, while working within the framework of landowner objectives as well as local and federal government goals. The Alpine Loop Spatial Analysis and Mapping Project analyzed the Alpine Loop landscape, considering important natural and cultural resources along with the likelihood of development based upon building constraints. The Project aims to provide a planning tool for area stakeholders as they consider the variety of land management options and the future of this magnificent region. The next logical step will be to craft solutions that work within the framework of landowner desires, local and federal government land management goals, and available financial and technical resources to manage the area in a way that preserves the Alpine Loop experience for future generations. While the Alpine Loop lies within three counties - San Juan, Hinsdale and Ouray - the analytical work extended into a portion of San Miguel County. The resulting mapping and analyses will: 1. Create a spatial foundation to aid future projects in the Alpine Loop corridor; 2. Serve as a prioritization tool for evaluating the conservation potential of individual private parcels; 3. Provide the necessary framework for pursuing future funding opportunities. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2003 Ending_Date: 2005 Currentness_Reference: See Standards for Digital Line Graphs (DLG-3) Status: Progress: Complete Maintenance_and_Update_Frequency: None Planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -107.8725478 East_Bounding_Coordinate: -107.2256611 North_Bounding_Coordinate: 38.08819806 South_Bounding_Coordinate: 37.73515861 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Conservation Theme_Keyword: Development Theme_Keyword: Proximity Place: Place_Keyword_Thesaurus: None Place_Keyword: United States Place_Keyword: North America Place_Keyword: Colorado Place_Keyword: San Juan Mountains Place_Keyword: Ouray County Place_Keyword: San Juan County Place_Keyword: Hinsdale County Place_Keyword: San Miguel County Place_Keyword: Ouray Place_Keyword: Silverton Place_Keyword: Lake City Access_Constraints: None Use_Constraints: None. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Computer Terrain Mapping, Inc. Contact_Person: Ed Russell Contact_Position: President Contact_Address: Address_Type: mailing Address: PO Box 4982 City: Boulder State_or_Province: CO Postal_Code: 80306 Country: USA Contact_Voice_Telephone: 303.444.1670 Contact_Facsimile_Telephone: 303.443.4856 Contact_Electronic_Mail_Address: ctm@ctmap.com Hours_of_Service: 8:00-5:00 MT Data_Set_Credit: This data set is the product of a collaborative process between numerous agencies, organizations and interested individuals from the beautiful Alpine Loop region. Native_Data_Set_Environment: GRASS version 5 on Red-Hat Linux version 8.0 exported to an ASCII Grid Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: See Standards for Digital Line Graphs (DLG-3) Logical_Consistency_Report: Only basic spot checking based on knowledge of terrain was performed. Completeness_Report: Road proximity was calculated for the entire study area. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: USGS Publication_Date: 1999 Title: USGS DLG-3 Publication_Information: Publication_Place: Reston, VA Publisher: USGS Other_Citation_Details: See Standards for Digital Line Graphs (DLG-3) Type_of_Source_Media: digital data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1956 Ending_Date: 1994 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: USGS DLG Source_Contribution: Location of access roads Process_Step: Process_Description: Converted vector format files to raster format. Created variable width buffers around access roads (see abstract for widths). Weighted buffer zones according to distance - closest zone lowest constraint; farthest zone highest constraint. Source_Used_Citation_Abbreviation: USGS DLG Process_Date: 2005 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 1256 Column_Count: 1863 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 13 Transverse_Mercator: Scale_Factor_at_Central_Meridian: .9996 Longitude_of_Central_Meridian: -105 00 00 Latitude_of_Projection_Origin: 00 00 00 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 30.0 Ordinate_Resolution: 30.0 Planar_Distance_Units: METERS Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 (NAD83) Ellipsoid_Name: GRS 1980 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257222101 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Road proximity grid cell Entity_Type_Definition: Any of the data elements in the road proximity map. Entity_Type_Definition_Source: author Attribute: Attribute_Label: road proximity cell value Attribute_Definition: The value is an estimate for the difficulty of access to a portion of the landscape. 0 - < 400m from roadway; 1 - 400-800m from roadway; 2 - 800-1600m from roadway; 3 - > 1600m from roadway. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3 Attribute_Definition_Source: author Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Computer Terrain Mapping, Inc. Contact_Person: Ed Russell Contact_Position: President Contact_Address: Address_Type: mailing Address: PO Box 4982 City: Boulder State_or_Province: CO Postal_Code: 80306 Country: USA Contact_Voice_Telephone: 303.444.1670 Contact_Facsimile_Telephone: 303.443.4856 Contact_Electronic_Mail_Address: ctm@ctmap.com Resource_Description: Alpine Loop Spatial Analysis and Mapping Project Distribution_Liability: Computer Terrain Mapping, Inc. (CTM) provides this data set as is. CTM makes no guarantee or warranty concerning the accuracy of information contained in the data. CTM further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, 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 this data has been processed successfully on computers at CTM, no warranty, expressed or implied, is made by the CTM regarding the use of this data on any other system, nor does the fact of distribution constitute or imply any such warranty. Custom_Order_Process: Contact distributor to receive additional copies. Metadata_Reference_Information: Metadata_Date: 200504 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Computer Terrain Mapping, Inc. Contact_Person: Ed Russell Contact_Position: President Contact_Address: Address_Type: mailing Address: PO Box 4982 City: Boulder State_or_Province: CO Postal_Code: 80306 Country: USA Contact_Voice_Telephone: 303.444.1670 Contact_Facsimile_Telephone: 303.443.4856 Contact_Electronic_Mail_Address: ctm@ctmap.com Hours_of_Service: 8:00-5:00 MT Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998