The Roza Recreation Site boat ramp is located in Washington and serves the Yakima River. It is a concrete boat ramp that provides access to the river for small watercraft such as canoes, kayaks, and rafts. The width of the ramp is not specified, but it is wide enough to accommodate small craft.

According to the latest information available, the Roza Recreation Site boat ramp is open year-round, but water levels can vary depending on the season. Users should exercise caution and check river conditions before launching. The site is managed by the Bureau of Land Management and offers limited amenities, including a picnic area and restrooms.

Overall, the Roza Recreation Site boat ramp is a convenient access point for recreational boating on the Yakima River. It is suitable for small craft and provides basic facilities for visitors.