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Author Topic: new jersey topo has no topo lines  (Read 508 times)

pat22043

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new jersey topo has no topo lines
« on: November 02, 2021, 05:32:30 PM »
I've just downloaded and installed into Basecamp the New Jersey topo map file, 114-1182-new_jersey_topo_install
it properly shows as njtopo11
and it has roads and streams as expected. But it doesn't show any topo elevation contours.

In the past, I've been using PA, WV and VA topos, and they all work as expected -- with elevation contours.

The njtopo11 even shows a lot of sand trails thru the Pine Barrens, but no elevations.
Are they there? did I do something wrong?

pat22043

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Re: new jersey topo has no topo lines
« Reply #1 on: November 02, 2021, 05:56:01 PM »
Operator error.
The Pine Barrens are nearly all swamp, and there is very little elevation change.
But if you zoom in nearly all the way with Basecamp, you can see the topo lines.
Lots easier to see if you go up where there is elevation, such as Delaware Water Gap.

Boyd

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Re: new jersey topo has no topo lines
« Reply #2 on: November 03, 2021, 07:13:24 AM »
Haha, yes it is very flat down here in The Pines! We have Forked River "Mountain" with a summit less than 200 feet, for example.  :D  I no longer offer Garmin maps for download, but have quite a lot of South Jersey maps for your phone or computer in a free web app. The 2020 Topo has extreme detail with 5-foot elevation intervals from 1/3 arc-second data.

https://mobile.boydsmaps.com/#17.00/39.847862/-74.288747/pines2020/0.00/0.00

I used 1/9 arc-second LIDAR elevation data for 2' contours in my older 2017 topo

https://mobile.boydsmaps.com/#17.00/39.847862/-74.288747/pinesHD/0.00/0.00

If you're really interested in elevation detail, see my shaded terrain from the highest-resolution 1-meter LIDAR

https://mobile.boydsmaps.com/#17.00/39.847862/-74.288747/lidar2021bw/0.00/0.00

Or in color, with roads, buildings, property lines and other details

https://mobile.boydsmaps.com/#17.00/39.847862/-74.288747/lidar2021hd/0.00/0.00

There are many others too. And in the next week or two, there will be a major update to the web app.
« Last Edit: November 03, 2021, 11:48:16 AM by Boyd »

 

anything