Choose a Google® map marker following the route north on the map to see details for each point. Hyperlinks will open in a new window or new tab.
Zoom in and out, drag the map , and change the view to roadmap, terrain, or satellite, and go to street view.
Click on the path lines between markers for descriptions.
Markers not connected by path lines are points of interest that were visited by the expedition.
construction. Details have only begun to be added.
This has never been put to a map before. Eventually there will be a route with waypoints from New Helvetia (Sacramento) to near Redding at the extreme northern end of the Sacramento Valley. It will also have the second exploratory route from Peter Lassen's Rancho to Tule Lake on todays CA/OR border.