The white line between the white and green dots is the Illinois River in Oregon.
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Anonymous has left a new comment on your post "Hunting: Bigfoot Prints and Foul Smell":
The Illinois River is a tributary, about 56 miles long, off the Rogue River. The Illinois River joins the Rogue River from the south of Agness, OR on the Curry–Josephine county line. The main stem flows generally northwest in a winding course past Kerby and through the Siskiyou National Forest and Kalmiopsis Wilderness.
Short answer: Sru Lake is located approximately 10 miles north of the Rogue River and Illinois River confluence.
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Thank you. ... LPN