Click and drag the map to move it around. The mouse wheel or zoom buttons to the right will zoom the map in and out to various zoom factors.
The search and filter feature in the infobar on the left will allow you to search map entities by their name or category.
The Pathfinder tool (compass icon) lets you measure the distance along paths. Find detailed info in the Pathfinder tool sidebar section.
You can turn map versions and different marker categories on and off with the layers button.
The hex map is scaled at 60 miles across each hex. Large squares are about 540 miles across when estimating travel.
You can scroll up and down the location list, or filter by name or type by entering the desired search term in the filter. Clicking on a location will center and zoom the map there.
Cue Indiana Jones travel theme...

To use the navigation tool: