Battle maps of the ECW

[The Gray Ghost]

I'm looking for battle maps like this one

is there a site that contains maps like this for the ECW?

[Hu Rhu]

You could try the British Civil Wars & Commonwealth Website which has a host of background information and a lot of maps of the campaigns and battles.  Link is here.
http://www.british-civil-wars.co.uk/military/index.htm

[Hobbit]

There is also this book:

http://www.amazon.co.uk/Battlefield-Atlas-English-Civil-War/dp/0711016542

The exact deployments and even the exact locations of the battles can be open to some debate. This book gives quite good discussion of the location of the battles that it does discuss:

http://www.amazon.co.uk/Decisive-Battles-English-Civil-War/dp/1844154548/ref=sr_1_1?s=books&ie=UTF8&qid=1377597636&sr=1-1&keywords=decisive+battles+of+the+english+civil+war

[Etranger]

http://www.battlefieldstrust.com/default.asp often includes battlemaps & a lot of other useful information for many British battles. not just for the ECW either. Here's the entry for Cropedy Bridge http://www.battlefieldstrust.com/resource-centre/civil-war/battleview.asp?BattleFieldId=2