Marshall Island Access is a 40-acre day-use park on the Willamette River's west bank, 4. 5 miles outside Junction City, featuring a newly improved boat ramp with an enlarged eddy for easier launching.

The park offers bank fishing, a primitive riverside trail, free parking, and a pit toilet, though it can become very busy during summer months.

Paddlers and boaters will find this a good starting point for water trail trips, with multiple campsites and gravel bars available downstream.