Mount Si stands at 4,167 ft (1,270 m). The mountain was named after Josiah Merritt, an early settler. It figures prominently in the show Twin Peaks, and is a popular hiking destination, getting between 80,000-100,000 climbers annually. Due to its terrain, especially towards the top, Mount Si is used as a training hike for those planning to ascend Mount Rainier (the highest peak in the Cascade Range, at just over 14,400 feet).
When you're this popular, people want to name things after you:
The local high school, several doctors, dentists, and businesses all take on the name of Mount Si. I've even heard of a couple of weddings done at the top of the mountain.
This is about as close as I can get on a scooter, however, which is fine by me: