Harpham Flat boat ramp is located in the state of Oregon, USA and is specifically situated at latitude 45.13362885 and longitude -121.12151337. The boat ramp is a concrete ramp that has a moderate slope, making it suitable for launching and retrieving boats of different sizes.

According to the latest information available, the Harpham Flat boat ramp is approximately 25 feet wide, providing ample space for two vehicles and trailers to use simultaneously. The facility is managed by the United States Forest Service and is open year-round, subject to weather conditions.

The boat ramp provides access to the Deschutes River, which is a popular destination among boaters and anglers in the region. The Deschutes River is a major tributary of the Columbia River and runs for approximately 252 miles through central Oregon. The river offers various recreational activities such as fishing, swimming, kayaking, and rafting.

The Harpham Flat boat ramp is suitable for launching different types of watercraft, including motorized boats, kayaks, canoes, and rafts. However, boaters are advised to exercise caution and follow all safety regulations while using the facility to ensure their safety and that of other users. Additionally, a valid permit may be required to launch a boat at the Harpham Flat boat ramp, depending on the season and specific regulations in place.