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Welcome to TopoQuest!
TopoQuest is your ultimate resource for USGS topographic map viewing, and free downloads of USGS DRG (GeoTIFF) digital map files.  If you're into hiking, camping, fishing, prospecting or just a GIS enthusiast, TopoQuest has the USGS topographic maps you need available for online viewing.

Are you bummed that TopoZone has been bought by and no longer has the level of free map viewing you crave?  No problem, TopoQuest is an excellent replacement with all of the same features!

We're working on rounding up all the DRG topographic map data covering the entire United States.  It's our belief that these digital map files should be freely available to anyone that wants them (note: USGS topographic maps and DRG's are public domain and have no copyright, and are free to distribute as anyone wishes).

Additionally, we've been adding topographic maps of Canada, 1m satellite/aerial imagery of the US and Canada, and 1:100K and 1:250K series USGS topographic maps!  You can find and view all of these types of maps with TopoQuest:
Want to browse around topographic maps for your area?  Visit our Map Viewer.  Want to search for, download or view a particular topographic map?  Visit our Find Maps page.  Want to search for a populated place, geographic landmark, manmade object or other place or feature?  Try our Find Places page.  Looking for more info on DRG files, their format, and software you can use to view them?  Check out our Resources & Links page.

Current Status of Online Topographic Map Viewer Coverage:
1:24K Coverage Map
Areas shown shaded in dark green are available for viewing in the Map Viewer.

State Online Viewer Status DRG Downloads
AlabamaMost MapsAvailable
AlaskaNo DataAvailable
ArizonaMost MapsAvailable
ArkansasMost MapsAvailable
CaliforniaMost MapsAvailable
ColoradoMost MapsAvailable
GeorgiaMost MapsAvailable
IdahoMost MapsAvailable
IllinoisMost MapsAvailable
IndianaMost MapsAvailable
IowaMost MapsAvailable
KansasMost MapsAvailable
KentuckyMost MapsAvailable
LouisianaMost MapsAvailable
MaineMost MapsAvailable
MarylandMost MapsAvailable
MassachusettsNo DataAvailable
MichiganMost MapsAvailable
MississippiMost MapsAvailable
MissouriMost MapsAvailable
MontanaMost MapsAvailable
NebraskaMost MapsAvailable
NevadaMost MapsAvailable
New HampshirePartialAvailable
New JerseyPartialAvailable
New MexicoMost MapsAvailable
New YorkPartialAvailable
North CarolinaMost MapsAvailable
North DakotaMost MapsAvailable
OklahomaMost MapsAvailable
OhioMost MapsAvailable
OregonMost MapsAvailable
PennsylvaniaMost MapsAvailable
Rhode IslandPartialAvailable
South CarolinaMost MapsAvailable
South DakotaMost MapsAvailable
TennesseeMost MapsAvailable
TexasMost MapsAvailable
UtahMost MapsAvailable
VermontMost MapsAvailable
WashingtonMost MapsAvailable
West VirginiaMost MapsAvailable
WisconsinMost MapsAvailable
WyomingMost MapsAvailable

To download a USGS topographic map in DRG GeoTIFF form, visit our Find Maps page to find and download the map you need.  Many of the DRG downloads are links to the DRG map archive at  The collection of DRG's lacks any sort of useful search tool to find the map you need, but TopoQuest has a searchable database of all DRG's to help you find your map quickly!

We're working on acquiring and integrating map data to fill out the above areas in our online Map Viewer.  We usually start each map series from the Pacific Northwest, and moving onward from there.  Please be patient, it takes a lot of processing and data preparation to add each new set of maps, especially the new 1m satellite/aerial maps!

Copyright (C) 2008-2024 Ryan Niemi ... All Rights Reserved