Paris metro line 7 bis

The Paris metro 7 bis serves the 10th and 19th arrondissement of Paris, with 6 stations located on the 19th, one station is on the boundary of the 10th and 19th and 1 is located in the 10th.

It links Louis Blanc station (west) to Pré Saint- Gervais station (east), the line 7bis only serves a total of 8 stations.

The journey lasts 9 minutes from west to east and 8 minutes for the other way. A first departure occurs at 5:31am from Pré-Saint-Gervais and at 5:43am from Louis Blanc station.
The last departures of the Paris metro line 7bis occurs at 00:13am (Place des fêtes), at 00:06am (Louis Blanc) and at 11:56pm (from Pré-Saint Gervais), for the week and until december 2011.
On friday-saturday night, on saturday-sunday night, as well as on public holidays (between the night before the holiday and the holiday day) and for August 2011, the Paris subway line is opened after those hours.
 
The frequency for the week, is 7 minutes before 7:30am, between 7:30am and 8:30pm it's 5 minutes and after this hour it's around 8 minutes, and for the week-end the frequency is around 7-10 minutes.

If you plan to visit the Buttes Chaumont park by the subway line 7bis, you can stop at Buttes-Chaumont or Botzaris station.