The boat ramp named Highway 4 1251-1299, Skamokawa is located in Washington, not Oregon. It is situated on the Skamokawa Creek, which flows into the Columbia River. The boat ramp provides access to the Skamokawa Creek for motorized and non-motorized watercraft.

According to the most recent information available, the boat ramp is maintained by the Wahkiakum County Parks and Recreation Department and is 16 feet wide with a gravel surface. It has a gentle slope and is suitable for launching small to medium-sized boats, kayaks, and canoes. The boat ramp also has a small parking area for vehicles and trailers.

In terms of regulations, all watercraft are permitted on the Skamokawa Creek, including motorized boats, sailboats, kayaks, and canoes. However, visitors are advised to check local regulations and obtain any necessary permits before using the waterway.

Overall, the Highway 4 1251-1299 boat ramp in Skamokawa is a small but convenient facility for accessing the Skamokawa Creek and exploring the surrounding area by watercraft.