How to Get Here
Signal Consulting, Inc., is located high in the Cascade Mountains, on the dry, sunny Eastern side of Washington State, about 75 mi. south of the Canadian border.
It is not easy to get here, but for those who make the trip, the rewards more than compensate for the effort.
Address: 150 Signal Hill Rd., Twisp, WA 98856
Summer - North
Cascades Hwy 20 - road closed in winter
Pass report: 1-800-695-ROAD or 511 for road conditions (http://www.wsdot.wa.gov/traffic/passes/)
From Seattle, take I-5 Northbound to exit 230 (Burlington/Sedro-Woolley). Turn Right and follow signs for Hwy 20, North Cascades Scenic Highway. This is a beautiful drive, but please fuel up before crossing the pass. Once you enter the highway, there is no cell phone service for 70 miles.
Hwy 20 takes you through a fantastic high-mountain wilderness area, through the western-themed town of Winthrop and then, 4 miles later, to Signal Hill Road.
Winter - I-90, Hwy
Pass report: 1-800-695-ROAD or 511 for traveler information (http://www.wsdot.wa.gov/traffic/passes/)
From Seattle, take I-90 Eastbound to exit 85 (Wenatchee). Cutoff 970 will lead you directly onto Hwy 97 and over Blewett Pass. When you reach Hwy 2, turn Right and follow to Wenatchee. Look for signs that say Hwy 97 Northbound (Okanogan, etc). Stay on the main Hwy 97 and not Alt 97. About an hour north of Wenatchee, at Pateros, turn Left onto Hwy 153 and follow into Twisp.
From Spokane, take Hwy 2 West to Wilbur. At Wilbur, turn Right onto Hwy 174 continuing NW to Grand Coulee. Follow Hwy 174 through Grand Coulee and continue, crossing the Columbia River at Chief Joseph Dam (Bridgeport) until you get to Hwy 97. Take Hwy 97 Southbound (left turn) for 12 miles to Pateros. Just after Pateros, turn Right onto Hwy 153. Just South of Twisp you will merge into Hwy 20 (continue straight). Follow that into Twisp and then four miles further to Signal Hill Road.
Horizon Air/Alaska Airlines flights connect from Seattle (SEA) to Wenatchee, WA (Pangborn Airport). (1-800-ALASKAAIR (1-800-252-7522))
From the Wenatchee airport, take Hwy 97 Northbound. About an hour north of Wenatchee, at Pateros, turn Left onto Hwy 153. Just South of Twisp you will merge into Hwy 20 (continue straight). Follow that into Twisp and then four miles further to Signal Hill Road.
From Signal Hill Road
Signal Hill Road is a well-maintained gravel road, located on the West side of HWY 20 between Winthrop and Twisp, just 0.1 mi North of highway mile marker 198.
Sometimes the mile post sign falls down, but you can use other mile markers to find your way—the miles increase proceeding South from Winthrop towards Twisp.
Once you turn onto Signal Hill Road, immediately take the first right fork and then stay on the main path for a total of 1.5 miles.
You will veer past four other driveways on the way up to Signal Hill Ranch at the top of the hill. If you come to anything that doesn't look like a big log cabin, you aren't at the top—turn around and take a different fork that leads higher (see detailed map).