Route planning - forum sources?

[Bontie2]

I am dreaming of tracking the family roots (routes;-)).

I typically use ridewithgps which is superb, but I fear it may not always distinguish between public and private roads. 
I have a rough route from Askham/Twee Rivieren to Matjiesfontein drawn. Does the hivemind here have any idea how we can ascertain if roads are crossing farms or private?

[Anthem24]

One way is to go onto Google Maps desktop version, choose the motorbike option and click on streetview -- all the blue roads that the Google car has been down should be public. 

The smaller roads aren't shown here though.

Edited January 3 by Anthem24
added final line

[Anthem24]

By zooming in on smaller roads in Google Maps and going into streetview at each end (if available), you can typically see whether there's a gate or a sign indicating a private road. Alternatively, take note of guesthouses in the area and contact them to check.

[Anthem24]

You can also gauge quite a lot from Tracks4Africa, although there may be road closures that aren't reflected. https://map.tracks4africa.co.za/map

Edited January 3 by Anthem24
added link

[michaelbiker]

Strava heatmap is usually what I use but be wary of races that go through some private land - so check segments on the route and you should see dates, times and rides through those areas. 

[100Tours]

I usually ask for help in the motorbike forums or read the moto touring blogs - they're a great source for the longer rides 

[Bontie2]

Thanks all - it will tale some time I reckon