There's a thread that mentions the Seattle concert in the title, but I doubt people in other areas, including Oregon, are likely to open that thread to find out where and when he's appearing in Oregon and other areas of the country.
He'll be performing in Astoria, OR in about a week and in Portland, OR a few days later, before going on to Seattle and then back eastward for more concerts.

Upcoming concert appearances, from Gordon Bok's Website

Monday, February 28, 2011 7:30 PM with Special Guest Carol Rohl
Astoria Arts & Movement Center, 11th & Harrison, Astoria OR 503-458-6837

Gordon Bok with Special Guest Carol Rohl
Thursday, March 3, 2011, 7:30 PM: Portland Folk Society: St Philip Neri Church, Carvlin Hall,16th & Division Sts, Portland, OR 503-642-9100

Gordon Bok with Special Guest Carol Rohl
Saturday, March 5, 2011 7:30 PM: Seattle Folklore Society and Northwest Seaport: Phinney Neighborhood Community Center Hall, 6532 Phinney Ave N, Seattle, WA, 98103 Tickets at Brown Paper Tickets 206-528-8523

Gordon Bok with Special Guest Carol Rohl
Friday, April 1, 2011, 8:00 pm:Voorheesville, NY: Old Songs, 37 South Main St, Voorheesville NY518-765-2815

Gordon Bok
Saturday, April 2, 2011: Ithaca, NY: Cornell Folk Song Society:607-277-8519

Gordon Bok
Friday, April 8, 2011, 12:15 PM Free East Lansing, MI: MSU's "Our Daily Work/Our Daily Lives" Brown Bag Series: Room 449 W of the Main MSU Library, Michigan State University, East Lansing MI. Lunchtime discussion with Gordon Bok about the subject of some of his folk music: fishing and fisherman's lives in the Maritimes.517-432-3982

Gordon Bok
Friday, April 8, 2011,8:00 PM East Lansing, MI: Ten Pound Fiddle Concert and Dance Series: Unitarian Universalist Church, 855 Grove St, East Lansing, MI

Gordon Bok
Saturday, April 9, 2011, 7:30 pm Flint,MI: Sippin' Lizard Coffeehouse, Greater Flint Arts Council Gallery, 816 S.Saginaw St.
810-653-7985