The map below is 'live'
The red line is a GPS track
Click-hold-drag the map
Click the camera icons
Try a right-click
Play with the two menus

Gmap4 displays Google maps plus the USGS topographic maps (7.5" 1:24,000)

Also displays topographic maps for Canada (1:50,000)

Gmap4 is a 100% free, no ads, public service

Gmap4 can read:
  • KML, KMZ, GPX and TPO files
  • Google MyMap files

KML/KMZ/GPX/TPO files can be stored in the cloud on Google Sites
KML files can be stored in the cloud as Google MyMaps
Edit Google MyMaps in place and immediately see your revised map
Display multiple files on the same map

The topographic maps are superior to the Terraserver maps

Topographic maps are supplied courtesy of the MyTopo Company
Better on-screen quality than the Microsoft Terraserver maps
Includes all US Forest Service updates to the USGS maps

Detailed Help file with Quick Start guide

If you are a prior user please see the sections labeled "new"
in the table of contents