Indie rock trio Sleater-Kinney has slated a short two-leg spring tour. Dates in late-April will concentrate on the East Coast with Sub Pop act Thermals opening. A mid-to-late-May West Coast swing will feature Quasi in the opening slot.

"Why are the tours so brief?" the band writes on its official Web site. "Because we are writing songs and getting ready to record. More extensive U.S. and overseas tours will commence once the new album is out."

As reported last week, the band will be among those playing the Sasquatch Festival May 29 at the Gorge in George, Wash.

Sleater-Kinney's last album, 2002's "One Boat" (Kill Rock Stars), debuted at No. 5 on Billboard's Top Independent Albums chart and No. 2 on the magazine's Top Heatseekers tally. The set has sold 70,000 copies in the United States, according to Nielsen SoundScan.

The band toured extensively in support of "One Beat," including a long stretch opening for Pearl Jam, as well as headlining club and theater tours.

Here are Sleater-Kinney's upcoming tour dates:

April 21: Towson, Md. (Recher Theatre)
April 22: Washington, D.C. (9:30 Club)
April 25: Boston (The Roxy)
April 26-27: New York (Irving Plaza)
April 29: Philadelphia (The Trocadero)
April 30: Poughkeepsie, N.Y. (Vassar College)
May 14: Santa Cruz, Calif. (The Catalyst)
May 15: Ventura, Calif. (Ventura Theatre)
May 16: San Diego (SOMA)
May 18: Pomona, Calif. (Glass House)
May 19-20: Los Angeles (El Rey Theatre)
May 22-23: San Francisco (The Fillmore)
May 25: Eugene, Ore. (McDonald Theatre)
May 29: George, Wash. (The Gorge/Sasquatch Music Festival)