Although Google maps is very good for finding locations of cities, towns, villages. and rivers, it is a bit lacking when it comes to topographical features, such as ridges, hills, etc.
Maps of France
Francois Lo Presti recently pointed out to me an on-line source of 1:50,000 scale maps for France. It is Geoportail: https://www.geoportail.gouv.fr
To access the 1:50,000 scale maps click on Cartes in the upper left corner and then on Carte IGN.
Maps of Spain
Can be found at: http://www.ign.es/iberpix2/visor/
Maps of Portugal
Can be found at: http://www.igeo.pt/mapviewer/?wmsurl=http://www.igeo.pt/WMS/Cartografia/SC50K
@John Gill, please download my "Ciudad Rodrigo Sieges" kmz file from here: https://bit.ly/Ciudad_Rodrigo_kmz and open it in Google Earth (free English Pro version download here) Explore maps, bibliography and views. Use 3D terrain and different transparencies and navigate using keyboard and mouse. Please, provide feedback.
That would most interesting (posting a kmz, that is). Thanks!
Thanks for the information. I prefer the 1:50,000 scale maps for the battlefield. Unfortunately as you pointed out, the land has changed over the past 200 years. An example I have came across recently is the battle of Aire on 2 March 1814 in southern France. Oman writes about the Allies having to cross the Grave River to assault the French forces. I could not find this river on Google Maps, Google Earth, nor the 1:50,000 scale map of the area. At first I thought the name had been changed, but there was no river close to the battlefield. Then I looked closely at the 1:50,000 map and noticed that there were a series of dams and ponds where the river used to be. If you look at Google Earth, about the only way to tell that there used to be a river there is the amount of vegetation!
I think that the paradise may be the project openTopoMap :
just have a look to the position of Garris with this one.
An you test it with any country
Rui - I was not aware of those. Thanks!
Superb, Gentlemen, many thanks!
@Robert Burnham Thanks for sharing the links above.
Sharing the Peninsular War map room from McMaster University Library Map Collections:
And the well known 1808 itinerary map of Portugal, from Lourenço Homem and Eloy Almeida:
Carta militar das principaes estradas de Portugal
With added relief (https://www.loc.gov/item/2010589541/)
Thanks for this, Bob. Really useful!