Camp Consultant App-Grand Canyon (was GC0000-0010) - Page 4 - Mountain Buzz
 



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Old 01-21-2020   #31
 
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Quote:
Originally Posted by Infidien View Post
I remember Brown's Inscription as a great afternoon camp in January. Very accurate.
Wow, sun in January from 11:30 until 4:00 clipped at 3:00. Magical!

Out to mile 20 which I have posted;;; precisely corrected to GMT and repositioned to Rivermaps; I'm feeling with all humility aside: pretty precise.

I have Google Earth Street-View/ground truthed EVERY camp out to mile 20. By this I mean Google Earth has the entire Grand Canyon street viewed from a mid river perspective. CHECK IT OUT if you have not already.

With minor mental adjustment to Rivermap coordinate perspective, horizons are spot on.

I have total faith now in solar paths validated by SunPath.

This is something you can plan by if it matters I think. I look forward to further ground truthing.

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Old 4 Weeks Ago   #32
 
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GC000-030

Attached are sunset-sunrise graphs from Lee's Ferry to Mile 30
Attached Files
File Type: pdf GC000-030.pdf (3.42 MB, 25 views)
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Old 4 Weeks Ago   #33
 
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A few notes.

Certain camps cannot be properly calcuted digitally relative to overhangs and immediately adjacent vertical walls.

I now use the coordinates determined by Dwain and Tom provided via the GPX file from Rivermaps.net. Thank you guys. I owe you for this and much more.

Their coordinate spotted a location determinable from high resolution air photos. Obviously, they did not spot a location under an overhang such as at Poncho's Kitchen. Their location is set out on beach away from that overhang by many meters.

Digitally, calculating the elevation of a spotting of a point under an overhang provides an elevation of the surface above the overhang, at Poncho's an elevation perhaps a several hundred feet or more over head.

Going forward I'll try to note camps of similar dilemma as having "overhangs" or exaggerated shade potential. I've got to figure out how best to do that. A few camps with such difficulties are Hot Na Na, Martha's, Poncho's and a few others.

For now the best I can do is to digitally determine the lowest elevation of a minimal circular area(5 meters) proximal to the Rivermaps coordinate and proceed 360 with horizon calculations based on that low point.

My other option is to grab the river elevation closest to Rivermaps coordinate and use that elevation. That would work best in a few cases but bugger me in others situations.

These processes are a very slow moving video game. That is, spend an hour or two trying to deal with "special cases" only to determine whether it was or not a total waste of time.
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Old 4 Weeks Ago   #34
 
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GC030-040

Sunrise-Sunset graphs between mile 30 and 40.
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File Type: pdf GC030-040.pdf (1.20 MB, 13 views)
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Old 3 Weeks Ago   #35
 
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GC040-050

Sunrise-Sunset graphs between mile 40 and 50.

I'm testing a new feature. The file Spreadsheet040-050 contains two columns of hyperlinks at the right. If Google Chrome and Google Maps is properly set up on your desktop or laptop clicking on "Sat" should launch Google Maps and zoom to a satellite image of the camp. Clicking on "River" should zoom to a river view of the camp. Let me know if any one has a luck with this feature.
Attached Files
File Type: pdf GC040-050.pdf (1.28 MB, 12 views)
File Type: pdf Spreadsheet040-050.pdf (14.2 KB, 15 views)
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Old 3 Weeks Ago   #36
 
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The spreadsheet works on my Android phone.
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Old 3 Weeks Ago   #37
 
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Grand Canyon Camps 050-060

Attached are sunrise-sunset graphs between miles 50 and 60 for the Grand Canyon. The spreadsheet sumarizes the camps and has hyperlinks for immediate access to birds-eye and river view of the camps in Google Maps.
Attached Files
File Type: pdf GC050-060.pdf (3.39 MB, 12 views)
File Type: pdf Spreadsheet050-060.pdf (20.4 KB, 9 views)
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Old 3 Weeks Ago   #38
 
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Grand Canyon Camps 060-070

Attached are sunrise-sunset graphs between miles 60 and 70 for the Grand Canyon. The spreadsheet summarizes the camps and has hyperlinks for immediate access to birds-eye and river view of the camps in Google Maps.

The spreadsheet column "Size" denotes the relative size of the camp expressed between "0" for non-existent to "9" for largest.

The spreadsheet column "Quality" denotes the relative quality of the camp expressed between "0" for "I'd never stay there" to "9" for best quality.

The opinions of Size and Quality are based upon many sources but mostly my fading memory and extensive notes taken while on the river. I refreshed that memory using Google Map perspectives from above and at river level. These perspectives are bookmarked by hyperlinks "Sat View" and "River View" for the purpose of your own evaluation. When denoted as 0 to 2 camps become questionable as to whether they still exist or have been misplaced by the authors of Rivermaps.

I welcome second opinions concerning camps and I'll be certain to acknowledge you as a source if merited.

The spreadsheet column RM_Page denotes the Rivermaps Map page on which the camp is found.
Attached Files
File Type: pdf GC060-070.pdf (2.57 MB, 7 views)
File Type: pdf Spreadsheet060-070.pdf (19.7 KB, 6 views)
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Old 3 Weeks Ago   #39
 
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This is great! Doing the Salmon next perhaps?
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Old 3 Weeks Ago   #40
 
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Next river!?!?!?!

Hadn't thought about it much yet.
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