If you can spend a few days in Oregon either side of the conference, you can go further afield and check out these sites. 
The list starts with reputedly haunted spots, then lists Bigfoot reports from four counties including and surrounding Portland, then UFO sightings from 2004 (and a few more) all over the State of Oregon.
Oregon Paranormal Hot Spots
 Ghosts, Bigfoot & Aliens -- Oh my!!!
Ghosts
Frank N Stein's Gasthaus, Mt. Angel
Yaquina Bay Lighthouse, Newport
Yaquina Head Lighthouse, Newport
Battery Russell, Fort Stevens, Astoria
Heceta Head Lighthouse, Yachats
Neahkanie Mountain, Oswald West State Park
Devil's Lake State Park, Lincoln County
Spouting Horn Restaurant, Depoe Bay
Hot Lake Hotel, Lagrande
Applegate House, Yoncalla
John Day River, Wasco
Herman Helms House, Jacksonville
Knights Hall, Pacific University, Forest Grove
Hurst Home, Myrtle Point
Pendleton Arts Center, Pendleton
Sackett Hall, Oregon State University, Corvallis
New Redmond Hotel, Redmond
Linkville Cemetery, Klamath Falls
Theater Building, Western Oregon State College, Monmouth
Griswold School, Helix
Charles Green Caples House Museum, Columbia City
Lithia Park, Ashland
Oregon Shakespearian Festival, Elizabethan Theater, Ashland
Rock Point Cemetery, Gold Hill
South Eugene High School, Eugene
Hotel Oregon, McMinnville
Mission Hill Museum, Salem


Bigfoot
Multnomah County
Winter 2002 - Bridal Veil Falls
Summer 2002 - Cascade Locks
Fall 1994 - Rock Creek Community
1997 - Portland
Legend:  Bonneville, Larch Mountain, Troutdale

Clackamas County
Winter 2004 - Eagle Creek
Summer 2004 - Colton
Fall 2003 - Estacada
Winter 2002 - Molalla
Winter 2002 - Barton
2002 - Estacada
Fall 2001 - Rhododendron
Summer 2001 - Molalla
Spring 2001 - Glen Avon
Spring 2001 - Estacada x 2
Winter 2001 - Milwaukie
Summer 2000 - Sandy
Summer 2000 - Molalla
Winter 1999 - Estacada x 2
Fall 1999 - Estacada
Summer 1998 - Salem
Spring 1998 - Molalla x 2
Spring 1998 - Coon Ridge, near Squaw Mountain
Spring 1998 - George
Spring 1998- Estacada
Winter 1998 - Molalla
Fall 1998 - Molalla

Washington County
Fall 2003 - Cherry Grove
Fall 2001 - Vernonia
Fall 2000 - Hillsboro
Summer 1993-2003 - Plainfield
Spring 1995 - NW Portland
1994 - Banks
Summer 1993 - Beaverton
Early 1990s - Cherry Grove
Summer '84 or '85 - Glenwood
1979 - Timber
Winter 1976 - NW Portland
Fall 1970 - Cherry Grove
Summer 1970 - Wilsonville
Spring 1969 - Forest Grove
Spring 1969 - Whitelhall
1950s - Forest Grove

Columbia County
Fall 1997 - Vernonia
Summer 1980 - Rainier
1980 - Hwy 30
1927 - Yankton


Aliens/UFOs
2004
November 4 - Brooks
October 15 - Grants Pass
September 12 - North Bend
September 11 - Madras
August 31 - Cottage Grove
August 20 - Grants Pass
August 19 - Mule Creek Canyon
August 15 - Eugene
August 9 - Medford
July 4 - Brookings
June 26 - Medford
June 16 - Gerber Reservoir
May 15 - Portland
May 8 - Sherwood
May 5 - Portland
April 25 - Bend
April 10 - Baker City
April 8 - Albany
March 29 - Jordan Valley
March 20 - Beaverton
March 12 - Redmond
February 20 - Roseburg
February 9 - Lincoln City
January 21 - Beatty
January 21 - Coos Bay
Janaury 21 - Aloha
January 20 - Medford
January 19 - Hillsboro
January 17 - Eugene


November 22, 1966 - Diamond Peak, Willamette Pass
May 11, 1950 - McMinnville