Guide To Mapping Ski Areas

This page lists all of the requirements for mapping a ski area to be submitted to GEOSAP. The mapped ski area must meet the following criteria:

  • Be Open and Operating
  • Have all Lifts mapped with a solid red line, width 8.
  • Have all trail centerlines mapped with solid lines corresponding to their difficulty, width 5
  • Have all trail boundaries mapped with polygons colored to match their difficulty.

Map Organization
The proper organization for creating the .kmz file for an open ski area is to create a folder with a name matching that of the ski area and a default location entered which shows all of the mapped trails and lifts at the area.

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This image shows the default view for Ragged Mountain Resort, with all of the trails and lifts viewable.

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Two additional folders should be created, one labeled "Trails" and one labeled "Lifts". When all of the mapping for the resort is completed, the boundary polygons should be unchecked so that they are not viewable. The trail lines should be checked and viewable. All of the lifts should be checked and viewable.

Map Conventions
Areas that are glades and are marked only as a general area on a trail map should be outlined with a polygon colored to match the difficulty of the gladed area. This polygon should be checked and visible.

If an area of the ski area is blocked by a cloud, attempt to overlay the trail map over the Google Earth imagery and trace the trails as best as possible.

If high-resolution imagery is not available for a ski area, mark the lack of imagery on the corresponding page in the wiki and move on. Google Earth updates regularly, so check back on the imagery at a later date.

Once you have completed a map of a ski area and uploaded the KMZ file to the site, send an email to the site administrators. The new map will be added to the GEOSAP global map and a credit given to the member who completed it.

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