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Waldo LakeAgency: Willamette National Forest And listed in Lane County Parks |

Waldo Lake, near Willamette Pass near the summit of the Cascade Mountains, within the Willamette National Forest and is the second largest natural lake in Oregon and one of the purest in the world. On a calm day, the bottom of the lake is visible to a depth of 100 feet.
Waldo Lake is one headwater, (Source), of the Willamette River.
| Location | Lane County Oregon |
| Website | http://www.fs.fed.us/r6/willamette/manage/waldolake/ |