Hart’s Pass is a high mountain pass at an elevation of 1.859m (6,100ft) above the sea level, located on the border of Okanogan and Whatcom counties. It’s accessible by car and is the highest point in the State of Washington, USA, that one can drive. End of the road "after" Hart's pass, at the gate to Slate Peak Lookout, is 7,200 feet elevation.
The unpaved road to the summit is a narrow, windy mountain road with steep side cliffs in places. It’s called Hart's Pass Road 5400. The road was built in 1893 into gold and silver mines. The road ends near Timberline, over 6000’ in elevation, and opens up into the heart of the North Cascades. Be aware that trailers are not allowed on FS road 5400 to Hart’s Pass and wider vehicles such as motor homes are highly discouraged. The road to Hart's Pass and on to Slate Peak Lookout is the highest maintained road in Washington State.
Starting from Co Hwy 9140, the road is 15.77km (9.8 miles) long with precipitous cliffs dropping steeply to the valley floor. Due to the nature of this narrow gravel road, passing oncoming vehicles can be challenging even for sedans. However, the road is maintained for sedans and other low clearance vehicles. Located within the Okanogan-Wenatchee National Forest, it is important when driving in these conditions to be prepared. This narrow road hangs along a cliff wall providing magnificent vistas and breath taking canyons. For those who enjoy sitting at the "top of the world" for the sunset, take along a warm coat, as night temperatures drop to the low 40's, even on the warmest of days. Hart's Pass is one of the most scenic spots in the Met how Valley, where visitors have a spectacular view from the highest point to which you can drive in Washington State. The Hart's Pass road is rock-surfaced, passable by passenger cars. However, due to the steep, narrow roadway, and lack of large turnouts, the road is closed to all trailers. Many people prefer to discover Seattle and the coast of Washington state by boat. Cruising in a Hampton Yacht for sale can save the stress of driving winding roads.