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This file contains GIS layers for three feature types: Avalanche accident locations and weather stations for South Central Alaska. Both these layers are hyperlinked to offical/media reports and live weather data respectively. Users can also view observed slide path plygons for the Turnagain advisory area. To see the hyperlinks for the point features, simply click on them in the map and then a popup window will appear. Click on the weblink in the popup and the accident summary or live weather data should open in a new window within Google Earth.
Instruction to use this file:
1. You will need Google Earth installed your computer. It's easy.
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2. Next, download the .KMZ file to your computer.
Download the .KMZ file now »
If you already have Google Earth installed, simply open it and the drag the .kmz file onto its interface. Or you can right-click on the file, pick "open with...", choose Google Earth, clicking always use this program. You can then double-click the .kmz file which should open Google Earth and then zoom to the data. Users should see "Chugach Avy Data" in the Temporary Places folder.
Avalanche Accidents with Fatalities (1952-2008)
This map displays data points well culled from various volumes of the "Snowy Torrents", the Avalanche.org database and local media sources. In some cases the exact location of the point may be off as much of the spatial information was anecdotal. The basic idea one gets from this map is that there have been many avalanche deaths in our area in recent history. We are unfortunately ranked 2nd in the country in avalanche fatalities in the last 20 years. Click here for a larger map »
Slope Map in degrees for Glacier Ranger District advisory area.
This slope map was generated from the National Elevation Dataset (NED). The source data is essentially a grid of elevation points every 60 meters. Unfortunately, Alaska has very coarse elevation information. As the gird spacing increases, slope calculations are artificially smoothed by the algorithm used in the GIS software. Despite this, the bottom line is lots of red on the map, which means our terrain is ideal for producing large catastrophic avalanches. Play it safe by recreating on more gradual slopes!
Turnagain Pass - Common Names Maps
Download printable Turnagain Pass topo placename map (3.6 Mb .PDF).
Download Map now »
Summit Lake Area - Common Names Maps
Download or view the Summit Lake Area placename map (.jpg).
Download or view the map now »
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