Complex sentence: It joins the North Santiam River from the southeast to form the Santiam approximately northeast of Lebanon, approximately 10 miles (16 km) east of the confluence of the Santiam with the Willamette River.
Split into simpler sentences: It joins the North Santiam River from the southeast to form the Santiam approximately northeast of Lebanon. The confluence is approximately 10 miles (16 km) east of the confluence of the Santiam with the Willamette River.