Garmin Topo Us 100k Free Download
So I found that the 24K USGS maps are available free online. Not through services like TopoZone, etc. But you can download the full scan like you would get through NG Topo!
Results 1 - 24 of 183 - TOPO Map Card for Garmin Astro 220/320 Micro SD Central US. FAST 'N FREE. Outdoor Maps Upgrade the basemap on your device with detailed maps. Whether you're looking for topography, trails, roads or satellite imagery, we have a map to fit your needs.
Each state that I have looked for has a website that makes the original USGS scans available. Here are a few states a found with a quick search: New York West Virginia California Googling “24K DRG ” where is the name of the state you are looking for seems to find the website on the first page. Ignore the commercial sites and look for sites with.EDU or.GOV extensions. The files are the original USGS scans. DRG is the name they use for the scans.
However, it is alot of data to download. >However, it is alot of data to download. And a real pain in the rear to patch together. I’ve bought NG Topo!
Mozete samo skinuti patch od 44 MB i instalirati ga preko svog postojeceg CS-a: cs-skini.me/cs Skinite to i samo instalirajte preko svog CS-a gde se nalazi HL.exe i kad se instalacija zavrsi dobicete na desktopu ikonicu CS v42 i to je to. Ovde mozes skinuti CS v42!!! Doslo je vreme da se svi polako iz naftalina prebacite na novi Protocol 48 jer su i svi serveri prebaceni na taj protokol i sad moze na te servere da se udje i preko steam i preko nonsteam. Download cit za cs 1.6 v42). Ako ne radi ovaj patch znaci da ti ne valja CS onda moras skinuti full cs v42 ovde ispod! Ali stari nonsteam v19, v21, v23 itd baguju i ne rade lepo pa bi trebalo svi da predjete na novi v42 patch koji ce vash CS nadograditi na Protocol 48.
For the states in which I regularly hike because the other features (drawing routes, posting waypoints, etc.) are worth the money. Otherwise, any TerraServer client (or TerraServer itself) will give you 7.5′ topo quads for the whole US, equivalent to what you can get from DeLorme’s state products (some quads are out of date).
Mac users might want to check out Terrabrowser: it can print TerraServer maps at varying resolutions. >The Microsft TerraServer topo maps appear to be the 100k series, not the 24k series. You may have to zoom in more. I’ve compared both the USGS Seamless and TerraServer maps with my NG Topo!
Quads and they are exactly the same at the 1:24,000/7.5′ scale. This URL will drop you into a 7.5′ map of where I spent a blizzardy night in my hammock earlier this year while ski-packing. On USGS Seamless, after you have zoomed in to 1:2,810,005 or closer, check the Orthoimagery:DRG Mosaicked Image box. It will switch to 1:24,000 when you zoom to the 1:21,953 scale. (I have no idea if those scales are used everywhere or if they depend on previous viewing, but they should be close.).
USAPhotomaps I’ve been using it for 3 years. The software is free. It will download 24K series topos, as well as low, medium, and high res ortho overhead photos. It will also download sattelite radar elevation data. It does route creation, interfaces with GPSs, and is loaded with features.
Fast and easy to use versus online stuff. Between USAPhotomaps and the National Geographic Trail maps, I never need to buy anything else. I can just print out what I need. (OK sometimes I still buy quads because I just love maps). On a slightly different topic, if you have one of the fancy Garmin mapping GPS units and want better *topo* maps or more coverage than is available from Garmin, you can roll your own using free data and tools: There are many pre-built maps at this site: I still prefer printed maps with a well-waypointed, lightweight GPS unit (Geko/Foretrex), but it’s getting to a point where you can have maps on your GPS unit that are comparable in detail to the USGS 24k quads–at least in terms of topography and hydrology. Too bad the screens are so small.
BTW, Garmin sells 1:24k maps for the National Parks–you can preview these on their website. If you need an area covered by these, the quality will probably be better than what will take hours for you to build on your own. Unfortunately, I don’t understand why Garmin covers *only* the National Parks; why include Yosemite and Kings Canyon but not the Emigrant/Hoover/Ansel Adams/John Muir wilderness areas that surround them?
Download Requirements Use with 1 Device Only This product may be unlocked and used on 1 compatible device. If you want to use this same map on subsequent devices, you must purchase a new map for each device. Data downloaded to a microSD/SD card is associated with the device you select during the download process. Please purchase additional quantities for additional devices.
To download, or not to download: that is the question: And you don't know what is right? And to share. 
For fixed-mount marine devices, you will be required to enter the serial number or unit ID for your device. Downloaded charts only can be used on the device with this serial number or unit ID. If you own a compatible Garmin Marine Network multi-function display (MFD), the chart card must reside in the device for which the serial number was provided. This device will provide the charts to other devices on the marine network, but the card will not be recognized if inserted into any other device.