The trek will begin Sept. 15 in Lawrence, Kan., and wrap Nov. 2 in Washington, D.C.

As tipped here last month, Leo Kottke and ex-Phish principal Mike Gordon will spend most of the fall on tour in North America in support of their upcoming RCA album, "Sixty Six Steps." The trek will begin Sept. 15 in Lawrence, Kan., and wrap Nov. 2 in Washington, D.C. The group will also play Sept. 23 at the Austin City Limits Festival in Austin, Texas.

And while a handful of recent shows found Gordon and Kottke backed by percussionist Neil Symonette, the fall tour will return to a duo format. "We did a couple of weeks with Neil and we loved playing with him, but Leo's ears are sensitive, so we thought we'd bring it back to the duo," Gordon recently told Billboard.com. "Since I'm not using an amps or monitors -- I'm just using an acoustic bass -- this is the softest stage sound I've ever experienced in my life. It's softer than a string quartet un-amplified."

Due Aug. 23, "Sixty Six Steps" blends original compositions from Kottke and Gordon with such covers as Aerosmith's "Sweet Emotion," Fleetwood Mac's "Oh Well" and Pete Seeger's "Living in the Country."

Here are Leo Kottke/Mike Gordon tour dates:

Sept. 15: Lawrence, Kan. (Liberty Hall)
Sept. 16: St. Louis (Mississippi Nights)
Sept. 17: Columbia, Mo. (Blue Note)
Sept. 19: Asheville, N.C. (Orange Peel)
Sept. 21: Atlanta (Variety Playhouse)
Sept. 23: Austin, Texas (Austin City Limits Festival)
Sept. 27: Santa Fe, N.M. (Lensic)
Sept. 28: Denver (Paramount Theatre)
Sept. 30: Los Angeles (House of Blues)
Oct. 1: Palo Alto, Calif. (Stanford University)
Oct. 4: Santa Cruz, Calif. (Catalyst)
Oct. 6: San Francisco (Fillmore)
Oct. 9: Seattle (Moore Theatre)
Oct. 18: Madison, Wis. (Barrymore Theatre)
Oct. 19: Chicago (Park West)
Oct. 21: Indianapolis (Music Mill)
Oct. 22: Cincinnati, Ohio (Bogart's)
Oct. 23: Ann Arbor, Mich. (Michigan Theatre)
Oct. 25: Burlington, Vt. (Higher Ground)
Oct. 26: New Haven, Conn. (Toad's Place)
Oct. 28: Boston (Berklee Performance Center)
Oct. 29: New York (Irving Plaza)
Oct. 30: Philadelphia (TLA)
Nov. 1: Charlottesville, Va. (Starr Hill)
Nov. 2: Washington, D.C. (9:30 Club)