Topographic Map Viewer

Welcome to the TopoQuest Topographic Map Viewer!
Use the map below to find and zoom in on the region you want. Areas shaded green have 1:24K topographic map coverage for online viewing. Click in a green-shaded area to begin browsing topographic maps in that area. 1:24K topographic maps start at the 128m/pixel zoom level and below. If you need to locate a landmark or feature, you can search for it's location on our Find Places page. If you need to locate a specific USGS topographic map, try our Find Maps page.

Map Center: N46.00000° W96.00000° Datum: NAD27 Zoom: 10km/pixel

Note: Areas shaded green have 1:24K topographic map coverage.

Click on map to:

		Zoom in (x2)
		Zoom out (x2)
		Re-center

Map contents:

		Choose Automatically

		Overall Coverage

		1:24K Coverage (US)
		1:24K Topo maps (US)

		1:50K Coverage (Canada)
		1:50K Topo maps (Canada)

		1:100K Coverage
		1:100K Topo maps

		1:250K Coverage
		1:250K Topo maps

Zoom level:

		4m per pixel
		8m per pixel
		16m per pixel
		32m per pixel
		64m per pixel
		128m per pixel
		256m per pixel
		512m per pixel
		1km per pixel
		2km per pixel
		4km per pixel
		10km per pixel

Map Size:

		Small'ish (384x384)
		Medium Rare (512x512)
		Grande! (768x768)

Datum:

		NAD27
		NAD83/WGS84

Coordinate format:

		UTM
		Nddd.ddd° Wddd.ddd°
		Nddd°mm.m' Wddd°mm.m'
		Nddd°mm' ss" Wddd° mm' ss"

Note (7/31/2008) - We've started adding 1:50K scale topographic maps of Canada, starting with British Columbia. The Canadian topographic map coverage is still a bit experimental, and integration into the map viewer still needs a little work. The map viewer will not yet automatically select the 1:50K scale topographic maps, so if you're trying to view maps in Canada, you may need to manually switch to the 1:50K Topo Maps selection in the Map Contents section of the sidebar.

Note (4/15/2008) - With the demise of non-subscription access to TopoZone (now merged with Trails.com, a subscription service), we're scrambling to process all topographic maps for the US and make them available as quickly as possible. We now have four Linux PC's crunching map data 24/7 to produce and index map data continuously. We should be adding approximately fifteen 1 degree x 1 degree blocks of map data (approximately 1000 individual 7.5 minute 1:24000 topo maps) per day. We're starting with southern Oregon (because that's where we live!) and northern California and branching out from there.

Do you have a Topozone map URL that you want to convert to the TopoQuest equivalent? Simply replace topozone.com with topoquest.com in the URL, and you'll get the equivalent map as what Topozone used to produce! We have more details on using TopoQuest as a Topozone alternative on our Topozone Replacement page.