From my house you can clearly see Ben Lomond, Ben Vorlich on Loch Earn, Stuc a Chroin and just to the righthand side of Ben Ledi you can see the summit of Ben More at Crianlarich which is about 45 miles to drive not sure about the crows route.
Went up onto Winter Hill a couple of weeks ago when the far Lakeland fells were just dusted with snow and my companion managed to make out Skiddaw - 75 miles away