The Calapooya River
East on Hwy 228, just past the town of Holley, begins one of the most beautiful areas to prospect in the Willamette Valley

Please Note: Areas past the Forest Service boundary may have active claims. Please respect all posted claims. Verify all maps with a current Forest Service map.

 
This map shows some of the best areas to prospect on the Calapooya River
I would begin prospecting anywhere above the end of the pavement.
GOOD LUCK!