Black Butte:
https://en.wikipedia.org/wiki/Black_Butte_%28Oregon%29
http://www.summitpost.org/black-butte-oregon/151142
Blue-Wallowa Mountains:
https://en.wikipedia.org/wiki/Wallowa_Mountains
http://www.summitpost.org/wallowa-mountains/171205
Cascade Range:
http://www.kidzsearch.com/wiki/Cascade_Range
http://www.britannica.com/place/Cascade-Range
Coast Range:
http://www.britannica.com/place/Coast-Ranges
https://en.wikipedia.org/wiki/Pacific_Coast_Ranges
Columbia River Gorge:
http://www.columbiarivergorge.info/facts.html
https://en.wikipedia.org/wiki/Columbia_River_Gorge
Crater Lake:
https://www.nps.gov/crla/index.htm
https://kids.kiddle.co/Crater_Lake
Haystack Rock:
http://www.mountsthelens.com/haystack-rock-cannon-beach.html
https://en.wikipedia.org/wiki/Haystack_Rock
Hell's Canyon:
http://www.f.usda.gov/detail/wallowa-whitman/specialplaces/?cid=stelprdb5239080
http://www.britannica.com/place/Hells-Canyon
Klamath Mountains:
http://www.britannica.com/place/Klamath-Mountains
https://en.wikipedia.org/wiki/Klamath_Mountains
Multnomah Falls:
https://en.wikipedia.org/wiki/Multnomah_Falls
http://www.oregon.com/attractions/multnomah_falls
Mt. Bachelor:
https://en.wikipedia.org/wiki/Mount_Bachelor
https://kids.kiddle.co/Mount_Bachelor
Mt. Hood:
http://www.mthood.info/mt-hood-faqs.html
http://www.britannica.com/place/Mount-Hood
Mt. Jefferson:
http://www.volcanolive.com/jefferson.html
https://en.wikipedia.org/wiki/Mount_Jefferson_%28Oregon%29
Ochoco Mountains:
https://en.wikipedia.org/wiki/Ochoco_Mountains
https://kids.kiddle.co/Ochoco_Mountains
Oregon Caves:
http://www.britannica.com/place/Oregon-Caves-National-Monument
http://www.oregon.com/attractions/oregon-caves-monument
Sea Lion Caves:
http://www.sealioncaves.com/cave.php
https://en.wikipedia.org/wiki/Sea_Lion_Caves
Three Fingered Jack:
http://www.summitpost.org/three-fingered-jack/150461
https://en.wikipedia.org/wiki/Three_Fingered_Jack
Three Sisters: