Put-in - Shamrock Field, Johnsonburg, PA

Shamrock Field is a whitewater put-in located in Johnsonburg along the Clarion River, a large sixth-order stream that drains 1,249 square miles. The Clarion River at this location features an average gradient of 5.6 feet per mile with a mean flow of approximately 2,233 cubic feet per second, indicating moderate to strong current conditions typical of whitewater paddling. With an average velocity of 4.45 feet per second, paddlers should expect consistent flow and be prepared for the river's characteristics.

This access point serves boaters looking to put in on the Clarion River in northwestern Pennsylvania. The river drops a total of 576 feet over its 102.61-mile length, with the stream order classification of 6 indicating a well-established channel capable of handling various watercraft. Paddlers should be aware that water conditions on the Clarion River typically involve faster currents and require intermediate to advanced paddling skills depending on recent water levels and seasonal flow variations.

The location in Elk County provides access to a significant stretch of the Clarion River system. Users should verify current water conditions and flow rates before paddling, as the river's characteristics can vary considerably with seasonal changes and precipitation patterns in the drainage basin.