You can return your bike to any station with an open dock – you don't have to bring it back to the station where you picked it up.  

In the Transit app or Station Map, tap on a station to see the exact number of bikes and docks available. Line up the triangle located at the front of the bike with the dock and insert your bike gently but firmly- don't slam it! Wait until the light on the dock turns green to make sure it's locked. If you aren’t sure, pull the bike by the handlebars to confirm it’s properly locked. Please always make sure your bike is docked at a CoGo station when your ride is over; never leave it unattended.