caltopo also has a historical maps layer that is quite easy to navigate https://caltopo.com/map.html#ll=44.0734,-121.27602&z=12&b=1930 https://caltopo.com/map.h

caltopo also has a historical maps layer that is quite easy to navigate https://caltopo.com/map.html#ll=44.0734,-121.27602&z=12&b=1930 https://caltopo.com/map.html#ll=44.0734,-121.27602&z=12&b=19...