- wikijtr.icu wiki/History_of_Portland,_OregonPortland Bölgenin başkenti Oregon City'nin gölgesinde, nehir yukarısında 12 mil (19 km) Willamette Şelaleleri.
- wiki.openstreetmap.org wiki/Portland,_OregonPortland is a city in Oregon, United States at latitude 45°31′12.00″ North, longitude 122°40′51.60″ West. Join the OSM PDX Google Group email list.
- typeatrips.com portland-oregon-1Travel Guide to Visiting Portland, Oregon and Beyond. Portland is one of my favorite cities in the United States, especially when it comes to food.
- aaroads.com oregon/portland/Inside SW Portland, Oregon 99W travels along SW Barbur Boulevard to and from downtown and it is briefly coupled with Oregon 10 just south of downtown.
- smartertravel.com portland-oregon-vs-portland-…The 1835 penny that decided the city's name is on display at Portland, Oregon's Historical Society, along with plenty of other Oregon Trail-era artifacts.
- guides.travel.sygic.com production/en/Portland_(…As the Willamette River can be hard to spot on a map of Oregon, many newcomers mistakenly think Portland is along the nearby Columbia.
- e-sehir.com dunya-haritasi/portland-oregon-uydu-…Farenizin üzerinde, ortada bulunan tekerlek tuşunu ileri-geri hareket ettirerek de Portland (Oregon) haritasını büyütüp, küçültebilirsiniz.
- timeanddate.com Usa PortlandGet Portland's weather and area codes, time zone and DST. Explore Portland's sunrise and sunset, moonrise and moonset.
- us.edu.vn tr/Portland,_Oregon1890'lı yılların başında Oregon yolunun sonunda bir yerleşim yeri kurulmuş, bu şehre de "Portland" adı verilmiştir.