Based on online research, the Northport Flat Creek Road 2122-2396 boat ramp is located in Kettle Falls, Washington. It is a concrete boat launch ramp that is open year-round. The ramp is reported to be 20 feet wide, making it accessible for larger boats and trailers.

This boat ramp services the Columbia River, specifically the Lake Roosevelt National Recreation Area. Lake Roosevelt is a large reservoir that spans 130 miles and covers over 80,000 acres. The lake is known for its excellent fishing opportunities for species such as rainbow trout, kokanee salmon, walleye, and bass.

The park service website for Lake Roosevelt National Recreation Area states that motorized boats are allowed on the lake, but there are certain restrictions for personal watercraft (PWC) such as jet skis. PWCs must operate at idle speed within 200 feet of shore, and must stay at least 500 feet away from designated swimming areas and other boats. Additionally, PWCs are prohibited from operating at night.

It is important to note that the information provided may be subject to change, and it is always best to verify the latest information with the relevant authorities or park service before visiting the boat ramp and waterway.