Though much of downtown Portland is relatively flat, the foothills of the Tualatin Mountains, more commonly referred to locally as the "West Hills", pierce through the northwest and southwest reaches of the city. Council Crest Park at is often quoted as the highest point in Portland, however the highest point in Portland is on a section of NW Skyline Blvd just north of Willamette Stone Heritage site. The highest point east of the river is Mt. Tabor, an extinct volcanic cinder cone, which rises to . Nearby Powell Butte and Rocky Butte rise to and , respectively. To the west of the Tualatin Mountains lies the Oregon Coast Range, and to the east lies the actively volcanic Cascade Range. On clear days, Mt. Hood and Mt. St. Helens dominate the horizon, while Mt. Adams and Mt. Rainier can also be seen in the distance.