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미국
Trails
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연관 데이터
ANR Lands Dataset (Parcel)
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The State of Vermont has a long history of acquiring properties for conservation and recreation purposes. Since the first official state forest (L.R. Jones State Forest) was acquired in 1909, the State has acquired over 345,000 acres of land in more than 200 towns across the state. In addition, the Agency has recently acquired conservation easements on over 44,000 acres of privately-owned forest land. These diverse holdings are managed by the Agency of Natural Resources and include state parks, state forests, wildlife management areas, and fishing access areas, pond sites, streambanks, fish culture stations, dams, and other miscellaneous properties.
Trail Centerlines
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Surficial Geologic Map of the Town of Woodstock, Vermont
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Digital data from VG06-5 DeSimone, D., 2006,�Surficial Geologic Map and Groundwater Resources of Woodstock, Vermont: Vermont Geological Survey Open-File Report VG06-5, 6 color plates, scale 1:24000.� Data may include surficial geologic contacts, isopach contours lines, bedrock outcrop polygons, bedrock geologic contacts, hydrogeologic units and more. The surficial geologic materials data at a scale of 1:24,000 depict types of unconsolidated surficial and glacial materials overlying bedrock in Vermont. Data is created by mapping on the ground using standard geologic pace and compass techniques and/or GPS on a USGS 1:24000 topographic base map. The materials data is selected from the Vermont Geological Survey Open File Report (OFR) publication (https://dec.vermont.gov/geological-survey/publication-gis/ofr). The OFR contains more complete descriptions of map units, cross-sections, isopach maps and other information that may not be included in this digital data set.
Field data for the Vegetation Mapping Inventory Project of Appalachian National Scenic Trail - Open Format Data Package
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These data were converted from the originally delivered Microsoft Access PLOTs database from the Vegetation Mapping Inventory Project of Appalachian National Scenic Trail. These comma-delimited data tables contain(s) vegetation mapping plot classification and accuracy assessment data, as well as summary information about the data itself. If a table is empty, then it was empty in the original database.
Trails of Yellowstone National Park
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The main Trail Survey took place during the years of 1997-2000. Differentially corrected GPS (Global Positioning System) data were collected primarily on foot for all existing maintained trails and spur trails to backcountry campsites, attractions and buildings within the boundaries of Yellowstone National Park (YNP).The trails that could not be obtained through the GPS or have been rerouted since the survey were acquired through the uses of 1 meter Digital Orthophoto Quarter Quads (DOQQs) and the help of backcountry rangers with knowledge of where the trails are located. There are also associated GPS data for trail bridges, backcountry campsites, patrol cabins and trail surface type. Trail usage data also documented by using visitor ski and bike trail maps. Trails data have been updated since the original survey using information from the Yellowstone Backcountry Office, trails maintenance personnel, best available imagery resources, and GPS data. This layer is a work in progress.
Bedrock Geologic Map of Woodstock, Vermont
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Digital Data from VG06-4 Thompson, P. J., 2006, Bedrock Geologic Map of Woodstock, Vermont: VGS Open-File Report VG06-4, scale 1:24,000. The bedrock geologic map data at a scale of 1:24,000 depicts types of bedrock underlying unconsolidated materials in Vermont. Data is created by mapping on the ground using standard geologic pace and compass techniques and/or GPS on a USGS 1:24000 topographic base map. Data may be organized by town, quadrangle or watershed. Each data bundle may includes point, line and polygon data and some or all of the following: 1) contacts (lithogic contacts), 2) fault_brittle, 3) fault_ductile, 4) fault_thrust, 5) fault_bed_plane (bedding plane thrust), 6) bedding, 7) bedding_graded (graded bedding) 8) bedding_overturn (overturned bedding), 9) bedding_select (selected points for published map), 10) foliation_n1, n2, n3 etc (foliation data), 11) outcrop (exposed outcrops), 12) field_station (outcrop and data collection point), 13) fold_axis, 14) axial_plane, 15) lamprophyre, 16) water_well_log (water well driller information), 16) linear_int (intersection lineation), 17) linear_str (stretching lineation) 18) x_section_line (line of cross-section), and photolinear (lineaments identified from air photos). Other feature classes may be included with each data bundle. (https://dec.vermont.gov/geological-survey/publication-gis/ofr).
Imagery data for the Vegetation Mapping Inventory Project of Appalachian National Scenic Trail
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This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here. Imagery can also be downloaded at: https://earthexplorer.usgs.gov The rectified, full-resolution orthoimages used to map vegetation for the Appalachian National Scenic Trail are now available through the USGS Earth Explorer imagery portal. They are housed under the "Data Set" tab, "Aerial Imagery" data, "High Resolution Orthoimagery" checkbox. If you have a specific site in mind you can search a geographic area, otherwise you may search for them in the "Dataset Name" field under the "Additional Criteria" tab using "appalachian_trail_appa" Digital 4-band—true-color and color-infrared—aerial imagery was acquired in the months of October during 3 years (2009–11) for the APPA vegetation mapping project using a plane-mounted digital camera. This set of imagery became the primary source for image interpretation and mapping. The aerial imagery was collected at a pixel resolution of 30.48 centimeters (centimeter measurement calculated from a standard 12-inch measurement). The goal of fall-dated imagery, particularly with the color infrared bands, was to capture peak leaf-phenology change of hardwood trees; thus, aiding mappers in viewing distinctions among various hardwood-forest types. With the AT corridor being nearly 3,525 kilometers in length, the aerial imagery mission was flown in segments over 3 years to capture peak-leaf phenology, after leaf color change but prior to leaf fall. Priority was given to peak-leaf phenology in the higher elevations to ensure that all forest species were in leaf-on status for viewing on computers to successfully complete fieldwork and mapping.
Surficial Geologic Map of the Southern Two-Thirds of the Woodbury Quadrangle, Vermont
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Digital data from VG2015-3 Springston, G, Thomas, E, and Kim, J, 2015,�Surficial Geologic Map of the Southern Two-Thirds of the Woodbury Quadrangle, Vermont, Washington County, Vermont: Vermont Geological Survey Open File Report VG2015-3. Data may include surficial geologic contacts, isopach contours lines, bedrock outcrop polygons, bedrock geologic contacts, hydrogeologic units and more. The surficial geologic materials data at a scale of 1:24,000 depict types of unconsolidated surficial and glacial materials overlying bedrock in Vermont. Data is created by mapping on the ground using standard geologic pace and compass techniques and/or GPS on a USGS 1:24000 topographic base map. The materials data is selected from the Vermont Geological Survey Open File Report (OFR) publication (https://dec.vermont.gov/geological-survey/publication-gis/ofr). The OFR contains more complete descriptions of map units, cross-sections, isopach maps and other information that may not be included in this digital data set.