Several shuttle services are available for transportation between Portland, or Portland Airport (PDX), and Timberline Lodge. There is no regularly scheduled public transportation for this route.
Airport Shuttles: There are a variety of airport shuttle services which provide door-to-door transport via 5-7 person mini vans. Costs could be shared by workshop participants. Fees are typically $120 one way. A web search Portland Airport shuttle will reveal a variety of businesses offering service, for example USA Shuttle services at 800-997-4599 or online.
Car- and van-pool: Timberline has teamed up with Carpool Match NW. Just visit their website, register as a One Time Trip user, then select Timberline Lodge in the Destination menu.
A Google Group, DCLD2011, has also been set up for attendees to contact each other regarding sharing transportation and lodging:
Group name: DCLD2011
Group home page: http://groups.google.com/group/dclde2011Timber
Group email address dclde2011Timber@googlegroups.com
To include yourself as a member of this group, click here