Apparently 95mW and higher green lasers have distances above 50 miles. According to the chart at the bottom of http://www.wickedlasers.com/lasers/Executive_Series-55-3.html

Found via this page which states the range for the 95mW as 38 miles.
http://www.the-gadgeteer.com/review/wicked_lasers_nexus_95mw