Additional lessons that could be learned regarding Yarnell Hill Fire 

What the after action reports and videos do not state

USNG Florida
Jun 27, 2014 · 10 min read

Addition lessons that could be learned from Yarnell Hill Fire



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Screen shot from grid flyover video showing Grid Zone Designator “12S”
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Screen shot from grid flyover video showing GZD ‘12s’ and 100 Km ID ‘UC’
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Screen shot from grid flyover video showing 1 Km grid 36 88, all within 12S UC
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Screen shot from grid flyover video showing 100 meter grid 362 880
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Screen shot from grid flyover video looking west up towards the ridgeline. 100 meter grid 362 880, the shelter deployment location
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Screen shot from grid flyover video showing deployment site 362 880 and Granite Mountain Hotshot’s destination in 368 878
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Shelter deployment site of 362 880 in red. Team’s designation of 368 878 in grey to the east, southeast, 100 meter grid squares overlayed onto USGS topo maps.
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Aerial photo with 100 meter grid lines. Deployment site of 362 880 in red, team destination of 368 878 in yellow, ridge line in blue
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“Hasty map” example using USGS topographic view with US National Grid 1 Km squares. This file is just 1.2 MB in size. Such a map can be made in seconds and printed or emailed to team members. It is much better than no map at all. Further, determination of location to 100 meter precision is done with “right, then up” method standard for US National Grid.
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Smart phone application MilGPS with simulated position of 12S UC 362 880
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Smart phone application Pro Compass with simulated position at location 12S UC 362 880. Note that a full 10 digits is shown inferring a precision of 1 meter square. However, typical GPS or smart phone is not accurate to that level of precision. User may truncate to 4, 6 or 8 digits and still be within the accuracy of the device.
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Smart phone application GPSts set to 100 meter MGRS. Also shows UTM and a version of Lat/Long at same time. Position simulated. This app is FREE.

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