National Geographic PDF Quad Sheets

[dms330]

Seems pretty handy Jim and I don’t recall ever seeing it. Thanks for sharing.

[holy-cow]

Duly noted and saved as a favorite. Thank you for sharing, Jim.

[scott-zelenak]

Nice!
They’ve updated my area as well.

[a-harris]

That is nifty site, thanks for the info……….:clink:

[Dan Patterson]

Thanks! This will come in handy. For some projects I can probably use these as the key map. (Downloading the full size ones and inserting them into the drawing can be a pain)

[dave-karoly]

[twdotson]

While they may have a general purpose (such as a quick print and go), they are made up of simple 256×256 image tiles, no vectors and no GeoPDF information for coordinate transformation.

Some may prefer the USGS GeoPDF Quads (also free) at the National Map.
http://viewer.nationalmap.gov/basic/

[jhframe]

The National Map site is especially useful for the historic quads.

[john-hamilton]

I had been getting quads from libremap.org (which doesn’t work currently, not sure when it stopped), so this is a new source, also I was not aware that the national map site was available. I bought digital versions of all of the 100K and 250K maps years ago, but the 24K were available free, so I just download those when needed.

Thanks for those links. Quad maps are, to me, a work of art. In the pre-digital days I used to collect them, I probably have near a thousand, including a lot of foreign ones. I would always try to get some local topos whenever I go overseas.

[makerofmaps]

John Hamilton, post: 385644, member: 640 wrote: I had been getting quads from libremap.org (which doesn’t work currently, not sure when it stopped), so this is a new source, also I was not aware that the national map site was available. I bought digital versions of all of the 100K and 250K maps years ago, but the 24K were available free, so I just download those when needed.

Thanks for those links. Quad maps are, to me, a work of art. In the pre-digital days I used to collect them, I probably have near a thousand, including a lot of foreign ones. I would always try to get some local topos whenever I go overseas.

Hope this isn’t to off subject but they often brag around here about our mapping abilities and history. http://152.87.4.98/heritage/maps/index.htm

[john-hamilton]

makerofmaps, post: 385694, member: 9079 wrote: Hope this isn’t to off subject but they often brag around here about our mapping abilities and history. http://152.87.4.98/heritage/maps/index.htm

definitely TVA was instrumental in developing photogrammetric mapping. I just watched a movie over the weekend…Wild River
http://www.imdb.com/title/tt0054476/?ref_=nv_sr_1

[holy-cow]

Took a quick look at a couple of maps. What seemed to be missing was the notation as to the year of last update. This really leaped out when looking at one case where part of a large lake is on one map and part is on another. One map showed the lake as existing. The other was still showing pre-lake conditions.