Stevens Peak in Mount Rainier National Park, is a committed alpine climb. It's recommended you prepare carefully reading guidebooks and climbing websites, and making sure you have the necessary skills, experience and equipment. You will need to be able to handle wilderness route finding, high angle snow ascent and descent, mixed rock and snow, rock climbing, and challenging terrain.
There are two Unicorn Peaks in Washington - this Unicorn Peak is in the Tatoosh Range in Mount Rainier National Park. Unicorn Peak is a committed alpine climb - it can't really be considered a hike.
Here's another four-point summit north of Carson, Washington. You might be able to get within a mile or so in a carefully driven passenger car - perhaps only a little farther in a high-clearance vehicle.
There are a nice bunch of summits north of Carson, Washington - this one is a near drive up - as long as you have a high clearance vehicle.
This was a great trip for the wife and I and we had a great time. We left early on Monday morning and hiked in to a camp about 8 miles in. On Tuesday we got up and hiked the 5 miles to the summit and spent most of the morning afternoon up there on the summit. For rough directions to the summit go down to the local REI and buy a "Rattlesnake Recreation Area" map. There are many ways to get to this summit but none are short. Though it can technically be done in a day from the main rattlesnake trailhead (the way we came out), I would not suggest it. Take your time and enjoy the views.
Easy 2 Mile RT (or less) leads to this fantastic overlook of the Teanaway River Valley, Mount Stuart Range, Mount Rainier, Mount Adams and hundreds of other Cascade peaks.
All SOTA contacts were on 20M SSB, using my 20M inverted V dipole suspended fron a 22 ft. Carbon Fiber fishing pole. I made 12 contacts in 8 states over approximately 30 minutes.
Wampus Butte is another easily accessible summit near La Pine. Below is a map of the route we wished we had taken as it would have been much more direct (from Hwy 97, west on Burgess Rd to NF-44/E. Deschutes Rd and follow it to NF-600. It is about 1.5 miles on this road to the left turn up to the summit). This was a nice snowshoe in March but would probably be mostly almost a drive-up in summer. It was cloudy when we were up there but I think there would be a nice view on a clear day.
Pringle would probably be a drive-up or near drive-up in the summer but I am not sure whether the roads would be suitable for a passenger car or not as they were covered with snow, thus making it a snowshoe for us. According to the map there are at least 3 access points.
This is an easy drive up summit. Less then 1/2 mile easy walk to the top. Lots of deer in the area! One small buck walked right up to us and then followed us to the summit. Great views of hurricane ridge though we only go spotty views because of the clouds. Great 6 point activation. Campground within one mile of the summit
Setup: PFR3, MP1 SuperAntenna, TeNeKe
Headed up to the hills for an activation with my two oldest daughters. Nice big parking lot at the bottom and a nice easy 2 mile walk to the summit. This is in forest service land so you can camp on the summit. Nice spot with small fire pit. One day I may try this. Trees are encroaching the summit so spotty views. Nice big area to set up on the summit. I used SMS text for spotting with success.
Setup: PFR3, SuperAntenna, TeNeKe.
Actual Directions here: http://www.pnwsota.org/node/435