FloridaPilot
Pattern Altitude
It depends is the answer. There are a LOT of power lines, phone lines..etc that you wont see until you are on them. Here is an example:
http://www.wtsp.com/news/small-plane-crashes-in-mukilteo/436256265
http://www.sptimes.com/News/021000/TampaBay/Pasco_plane_crash_kil.shtml
http://www.wtsp.com/news/small-plane-crashes-in-mukilteo/436256265
http://www.sptimes.com/News/021000/TampaBay/Pasco_plane_crash_kil.shtml