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#91

Map Making Support / Re: Downloading NED in GeoTiff...

Last post by Boyd - July 28, 2023, 01:09:50 PM

It was moved to the national map long ago (this is an 8-year-old thread) . I've been consuming large amounts of 1-meter LIDAR DEM, just re-processed this map to fix some problems with my original version

https://forums.gpsfiledepot.com/index.php/topic,2579.msg27076.html#msg27076

But also downloading a substantial amount of additional 1-meter DEM to expand that map to cover all of New England. I'm using a 2tb SSD to process the files and have to constantly do housecleaning to keep any free space at all. Archiving all the original USGS source files to an 8tb hard disk that is almost full now, just got another disk yesterday.

If you know what you're looking for, it's much better to go directly to the source. The USGS has been moving all their files to Amazon S3. You can download directly there, it's very fast. Here are direct links to the geoTIFF downloads, they also have .img versions (arcgis .img, NOT garmin .img  )

1 arc-second
https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/1/TIFF/

1/3 arc-second (these have been updated with LIDAR imagery)
https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/13/TIFF/current/

1/3 arc-second (legacy version)
https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/13/TIFF/historical/

1/9 arc-second LIDAR DEM (only available in .img format)
https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/19/IMG/

1-meter LIDAR DEM
https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/1m/Projects/

Moving things to Amazon is a big upgrade from USGS' slow old servers, although it's kind of sad they couldn't do it in-house. This is the root for all the USGS datasets on AWS, there is quite a lot, including historical topo maps, landcover, aerial imagery and more

https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/

It all gets pretty confusing though, to the point that I wrote a database to ingest the USGS indexes so I can search and sort the files the way I want and keep track of what I've downloaded.

#92

Map Making Support / Re: Downloading NED in GeoTiff...

Last post by 93ToyTruck - July 28, 2023, 12:43:49 PM

The url to download elevation data is now:
https://apps.nationalmap.gov/downloader/

#93

Using The Maps/Garmin Software / Re: How Do I Load Maps On My G...

Last post by sockmonkey - July 21, 2023, 10:24:43 AM

Also, why not download the "Windows" version of the map you want, extract and copy the *.img to the Garmin folder on your SD card on your 30x

#94

Using The Maps/Garmin Software / Re: How Do I Load Maps On My G...

Last post by sockmonkey - July 21, 2023, 10:21:35 AM

To Derek,
Not sure what directions you are referring to in the previous posts, but all my Mac version maps have a *.gmap. Once you have extracted the zip file you will have a *.gmapi folder (if Windows).  Depending on which extractor you used, you may need to open/left click one, maybe two times to open to reach the *.gmap folder.  If you see Product 1 you've gone too far and back up one.  Hope this helps.

#95

Using The Maps/Garmin Software / Re: How Do I Load Maps On My G...

Last post by Derek Heffernan - July 21, 2023, 06:47:28 AM

Hello, I'm trying to download Maps for Canada from Sock Monkey.  I followed the directions in previous posts, and downloaded the Mac version, but there is no *.gmap file. 

Thank you Sock Monkey for these maps!  I'm trying to put them on my etrex 30x. 

#96

General Discussion / Re: Minnesota topo

Last post by sockmonkey - July 19, 2023, 05:44:33 PM

I might be able to help  .  I think something may be wrong with the installer as when I extracted it I didn't find a gmapsupp.img.  That could maybe be fixed with gmap tool, but I have it and can see this map in basecamp please follow...

Go back to the homepage and download the MAC version.  You will also need and advanced extractor like 7zip or pzip, both free.
-Find what you downloaded and it will end in .tgz, right click and extract to mntopo11.tar, again right click extract and you should end up with a folder mntopo11.gmapi, now left click once to open that folder and you should end up with mntopo11.gmap (no i).  If you made it this far we are ready for the next step, if not, start over.

Go to C:\ProgramData, you should have a folder named Garmin, (map need to show hidden folders) if not right click and create folder and name Garmin.  Open the Garmin folder and create a folder and name it Maps.  we now should have C:\ProgramData\Garmin\Maps, if so we are ready for the final step.  Copy the mntopo11.gmap that you extracted to previously into the Maps folder you should have your map now available in Basecamp and if you choose to "install" to your gps unit go for it.

This is my preferred way for the maps I offer as Mac versions can be used on both Windows and Macs.  It may look slightly complicated but it took less than 90 seconds from download to viewing the Minnesota map.

Let us know how it goes.

 

#97

General Discussion / Re: Minnesota topo

Last post by Boyd - July 19, 2023, 02:37:45 PM

Sorry, I no longer use Garmin's software and did not install it on my new system. One possible problem might be if you have installed a different map that just happens to have the same id.

You could try using the free GMTK program, it can diagnose a variety of problems and even automatically fix some

https://www.javawa.nl/gmtk_en.html

Unfortunately, the author suffered a stroke a few years ago and although he recovered, he was unable to continue with his software development. So there might be some compatibility issues, but give it a try.

#98

General Discussion / Re: Minnesota topo

Last post by mstl - July 19, 2023, 01:25:59 PM

Boyd, thanks for the reply.  I downloaded the file 153-5974-Minnesota-topo-install.exe file,  This is the one in your response. 

I double clicked on the file and it did it's thing, but the map does not show up on my Garmin Basecamp or Garmin MapSource.

I am using a windows computer. 

I did the Florida topo and that worked with no problem.

Any suggestions would be appreciated.

#99

General Discussion / Re: Minnesota topo

Last post by Boyd - July 19, 2023, 07:04:12 AM

It's s little hard to help when you provide so little information. What map are you trying to install? There's this one:

https://www.gpsfiledepot.com/maps/view/679/

That is a commercial product that you need to purchase from the onX website. You should contact the company directly if you need help.

Then there's this free map:

https://www.gpsfiledepot.com/maps/view/153/

I don't understand your question about unzipping. The file you download will not be zipped. It's a .exe file, which is an installer. Double-click the file and a dialog will be shown to guide you through the installation process. You should just be able to accept the default answers for all the questions.

I was able to download and run the installer but quit before actually installing.

Now this all assumes you are using a Windows computer... but you didn't tell us what kind of computer you have.

#100

General Discussion / Minnesota topo

Last post by mstl - July 19, 2023, 06:22:14 AM

I can download the Minnesota topo map, but it does not seem to unzip.  Any suggestions?