Sam, you can use Topozone.com or Google Maps. Once you display the area you want, you then need an image capture application (I like Snagit) to grab the image and save it as a .jpg. Once you've done that, you can use a picture drawing tool to edit the image and add lines or labels. I've used the Paint software on Windows for that.
Unfortunately, it takes some time to create a good map image and add your features.
