This "hill" is the highest point in the central Eastside region of Bellevue, Kirkland, and Redmond--an area bounded by Lake Washington, the Sammamish River, Lake Sammamish, and I-90. The location here is based on ground-corrected LIDAR-based mapping with a 2-foot contour interval. On the ground, the location appears to be on the south boundary of Bridle Trails State Park, just behind the backyard of a private residence. There is a park trail nearby, but the highest ground is in a dense thicket of brush that will require some bushwhacking to visit.
This website previously recorded the "False Bridle Trails Summit" as the high point of the area, based on a less-accurate King County map that may have been using tree-top LIDAR readings. That point is 1000 feet NW of this more accurate point.