- topo.png (405.24 KiB) Viewed 1538 times
That's almost (or is, in many cases probably) enough detail to figure out if a route will go from your desk.
New topo surveys?
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New topo surveys?
Did I miss a thread on this? I've been seeing this more lately:
This is near Molas Pass.
That's almost (or is, in many cases probably) enough detail to figure out if a route will go from your desk.
This is near Molas Pass.
That's almost (or is, in many cases probably) enough detail to figure out if a route will go from your desk.
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dwoodward13
- Posts: 745
- Joined: 3/26/2011
- 14ers: 58 12
- 13ers: 157 6
- Trip Reports (1)
Re: New topo surveys?
I started seeing more and more of this during the past winter season looking at the slope angle shading. Looks like the USGS is using LiDAR, and I believe the shaded relief pulls from the same dataset as the slope angle shading?
http://caltopo.com/about/2019/12/20/hig ... tion-data/
Edit: and here's an interactive coverage map on the updated LiDAR scans: Map
http://caltopo.com/about/2019/12/20/hig ... tion-data/
Edit: and here's an interactive coverage map on the updated LiDAR scans: Map
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oldschoolczar
- Posts: 597
- Joined: 7/18/2011
- 14ers: 45 1 1
- 13ers: 7
- Trip Reports (0)
Re: New topo surveys?
Interesting. Where are you seeing this? Looks to be just digital elevation modeling, but I'm not exactly sure how that works... some sort of post-processing on the topo data.
The surveyor I work with keeps telling me about the new vertical datum coming in the next couple years - no more NAVD88. He also mentioned, it'll lower elevations and a few of the lower CO 14ers (<14,005) might become 13ers.
The surveyor I work with keeps telling me about the new vertical datum coming in the next couple years - no more NAVD88. He also mentioned, it'll lower elevations and a few of the lower CO 14ers (<14,005) might become 13ers.
“what matters most is
how well you
walk through the
fire” -Charles Bukowski
how well you
walk through the
fire” -Charles Bukowski
Re: New topo surveys?
Oops. Yep, it's the shaded relief (and any layers that include it, like the MapBuilder topos) on caltopo.
Definitely not post-processing. It looks like, as dwoodward13 suggested, someone's doing hi-res LiDAR surveys. Pretty neat.
