East River Road Park County boat ramp is a concrete boat ramp located in Montana. It is about 20 feet wide and can accommodate small boats, canoes, and kayaks. The boat ramp services the Yellowstone River, which is a popular destination for fishing, boating, and other recreational activities. The East River Road Park County boat ramp is open year-round, but the water level and access may vary depending on the season and weather conditions.

According to the latest information available, the East River Road Park County boat ramp is suitable for small boats and watercraft. The river can be swift and deep in some areas, so it is recommended that boaters exercise caution and wear appropriate safety gear. Additionally, boaters are required to have a valid boating license and registration for their watercraft.

Overall, the East River Road Park County boat ramp is a convenient and accessible launch site for those looking to explore the Yellowstone River. It provides easy access to the water and is a great starting point for fishing or other recreational activities.