General: As a Klickitat Cunty highpoint, this is surprisingly activated often by the PeakBaggers. I saw a lot of boot traffic. See https://peakbagger.com/peak.aspx?pid=310 for a lot of trip reports and .gpx tracks.
Directions: From Goldendale WA, take SR97 north 14.5mi to Ski Lodge Rd. West exit. Go past the old Ski Lodge and west past Simcoe Butte/MC-051 which is on Yakima Tribal Lands. Side trip: drive up the narrow road to the summit for spectacular view of the Yakima and Simcoe valleys.