Free 24k Map Downloads

[+Sputnik 57]

Poindexter has pointed out some pretty cool links to free USGS 24K map downloads. They seem to be available on a state by state basis.

 

Download your free USGS quads for Tennessee here. To find the names of the quads you need go here and zoom in on your area until your in far enough to see the quad names. 

 

you can get USGS digital maps free for most states. Even Oklahoma.

 

I know that Idaho is out there somewhere, but I can't seem to find the link just now.

 

Does anyone else have a link to free downloads (not just screen shots) for 24K USGS maps?

[indybill]

I'm new to this stuff, but I think that I've found what you're looking for.

Here's Oregon's maps.

 

This site also has links to other state sites here.

 

Regards,

Indybill

Edited February 10, 2005 by indybill

[cad-guy]

http://www.gis.state.ar.us/

this will get you arkansas. Just go to geostor

[danalandrews]

These are all raster map's and not downloadable into your GPS. Is that correct?

You can gat the whole US using USAphotomap.

[+Greymane]

That is correct, these are raster maps. They will load into mapping software, but not into GPS units. I use them on my PPC.

 

I usually do a search for:

 

"digital maps drg (state)"

 

and find what I need. You have to sort through the commercial sites, but you can find them for "most" states. The sites are usually college / university sites.

 

These are nice for a small area, but not so good for a large area. There are anywhere from a few hundred drgs (for a smaller state) to well over two thousand for the larger states. If you want a large area at once, might be better to buy a set of premerged maps. Otherwise, you can just build a collection as you go.

 

A lot of times you can find free DOQQs as well.

Edited February 10, 2005 by Greymane

[+Poindexter]

Good idea Sputnik. I already have a partial list and various links saved. I'll have to try to get them together in some kind of order.

 

Here is Idaho. The nice thing about these files is that they are georeferenced and can be imported and automatically calibrated into Oziexplorer and I believe Memory-Map as well (Greymane?). They are high resolution scans of the original maps and not lower resolution "tiles" that are used on Terraserver (thats where USAPhotoMaps images come from). I'm not knocking the program, It's a fantastic app and just one of many ways of using GIS.

[+Greymane]

Yes, they will load into Memory-Map and here is the link to Pennsylvania maps (has DOQQs as well).

 

PA DRGs

[+Poindexter]

OK, did a little updating, this is what I have so far. I'm up to 38 states.

Edited February 11, 2005 by Poindexter

[+Sputnik 57]

Poindexter, you are THE MAN!! (or THE WOMAN!!! as the case may be). That is an awesome link. I've looked everywhere Google would lead me for Texas quads. Thanks!!!

[+Poindexter]

FREE DRG topo maps for all 50 states. Thanks Sputnik for getting me to finally finish that page. I found more than one link for some states and I'll be adding them in soon.

[+Sputnik 57]

Gee. I thought that this tread would go on and on, one site at a time. I didn't mean to dump it all on P's back. Great site, though, Poindexter. Thanks for a job well done!

[Parsa]

I've had this site bookmarked for a year or so.

 

Parsa

[+Poindexter]

I've had this site bookmarked for a year or so.

 

Parsa

Same here but several of those links are dead or do not ultimately provide downloadable data for free but a good resource nonetheless. When I was up to 47 states I came across this excellent resource. A few years ago you could download free DRG's from Geocomm but now there's a fee, but it comes to aroune 50 cents per map. You can still get DEM's for free from there which is nice for elevation data.

Edited February 12, 2005 by Poindexter

[+Poindexter]

Iv'e updated my webpage for getting free USGS Digital topo maps to a simple clickable map of the U.S.

[+Redwoods Mtn Biker]

This site has helpful information about projections, etc.

 

http://home.pacbell.net/lgalvin/drgnotes.htm