Multnomah County地形图

平均海拔：19 米

平均海拔：500 米

平均海拔：26 米

Hoyt Arboretum is sited on steep slopes, straddling the SW Fairview Boulevard ridge above the Oregon Zoo and the Portland Japanese Garden. The elevation of the arboretum ranges from 650 feet to 900 feet, and there are several ravines within the arboretum. The hilly terrain of the arboretum was once in private…

平均海拔：209 米

Rocky Butte lies in the northeast part of Portland within the city limits, in Multnomah County, part of the U. S. state of Oregon. It is one of the few smaller volcanic cones within or near Portland, along with Mount Tabor, Kelly Butte, and Powell Butte. According to the U.S. National Geodetic Survey, Rocky…

平均海拔：67 米

平均海拔：37 米

平均海拔：26 米

平均海拔：73 米

平均海拔：91 米

平均海拔：45 米

Gresham is characterized by hills on its eastern border. Northeast Gresham is also hilly, especially where the city meets Troutdale toward the Columbia River. Its elevation is 325 feet (99 m). Johnson Creek, which begins at the foothills of the Cascade Mountains, runs westward through Gresham, with 23 percent…

平均海拔：89 米

平均海拔：218 米

平均海拔：26 米

平均海拔：79 米

平均海拔：127 米

平均海拔：82 米

Annual snowfall in Portland is 4.3 inches (10.9 cm), which usually falls during the December-to-March time frame. The city of Portland avoids snow more frequently than its suburbs, due in part to its low elevation and urban heat island effect. Neighborhoods outside of the downtown core, especially in slightly…

平均海拔：77 米

平均海拔：157 米

平均海拔：54 米