Is there an online resource available to acquire a satellite image and use it to create a map? I need an image where I can get any dimension I need.  I'm basically drawing the buildings, roads, sidewalks etc. with Lines. The area I'm mapping is 4000' x 4000'. I took 12 Google Earth Images and referenced them in my drawing. Using the Google Earth Grid on the images I lined them up. The drawing is scaled accurately and everything. However, to this day and age there must be a more accurate way to do it. When I zoom in to trace lets say a sidewalk, it gets too blurry. Any ideas????