Exit 38 Rock Climbs
Todd Kutzke and Rob Price, published for smartphones by Rakkup.
According to the webpage link below:
The crags of North Bend, WA at Exit 38 off Interstate 90 offer a beautiful getaway for Seattle-area climbers with convenient climbing from Spring through Fall. This digital guide features accurate information and detailed photos of about 100 popular sport climbs on the best walls of the area. Amazonia, Club Paradiso, Deception Wall, Hull Creek, Kiosk, Nevermind, Semi, Substation, Actual Cave, & Write-Off walls are included in this version.