A car parked by a rocky lakeshore with firs and blue water

Parking & Directions

Millersylvania State Park is at 12245 Tilley Road S, Olympia, WA 98512, about 20 minutes from downtown Olympia. The park map shows the approach from I-5 Exit 95 and Maytown Road SW. Every car parked for the day needs a Discover Pass, $10 a day or $45 a year, and you can buy one at the pay stations at the entrance and at the ranger station.

At a Glance

Getting There at a Glance

Address12245 Tilley Road S, Olympia, WA 98512

From OlympiaAbout 20 minutes

HighwayI-5 Exit 95, Maytown Road SW

Parking passDiscover Pass, $10 a day or $45 a year

Pay stationsAt the entrance and the ranger station

CampersCamping fee covers parking

Coordinates46.9107, -122.90868

Driving to Millersylvania

Set your map to 12245 Tilley Road S, Olympia, WA 98512, or to the park's coordinates, 46.9107, -122.90868. The agency's park map shows two ways in: from Olympia to the north, and from I-5 Exit 95 and Maytown Road SW to the south. Both reach the park entrance on Tilley Road. Washington State Parks puts the drive from the capital at about 20 minutes.

Download the official park map (PDF) before you go. It shows the entrance, the day-use area by the lake, the two campground loops and the retreat center. See the trail map for what is on it.

Where to Park

The day-use parking sits close to Deep Lake. Washington State Parks points this out for paddleboarders: the lot is near the water, so you won't carry your board far. The map also marks overflow parking for busy days.

Day use: park in the marked lots by the lake and the kitchen shelters. Display your Discover Pass.
Campers: your campsite includes parking for one vehicle. Display your camping registration on the dashboard. A second vehicle costs $10 a night and parks in the designated spaces.
Retreat center and cottage guests: parking is included with the rental.

A calm lake reflecting a shore of tall firs under a partly cloudy sky

The Discover Pass

A Discover Pass is a parking pass for Washington State Parks and other state recreation lands. One pass covers everyone in the car.

One-day pass: $10.
Annual pass: $45, good for a year from purchase and transferable between two vehicles.
Where to buy at the park: automated pay stations at the entrance and at the ranger station and gift shop. No transaction fee there.
Fine for not displaying one: $99.

You don't need a pass if you walk or bike in, if you are a registered camper here, or on a state free day. The next free day in 2026 is Veterans Day, November 11. Full details on the Discover Pass page.

Accessible Parking

The park page lists accessible parking, accessible restrooms and accessible campsites. Washington residents with a permanent disability parking placard park free in state parks.

Before You Go

Check the hours: the park opens at 6:30 a.m. in summer and 8 a.m. in winter, and closes at dusk.
Check the agency's alerts page for burn bans and closures.
Hand-carry boats only at the launch; there is no trailer ramp. See boating.

A tent and a travel trailer parked at a grassy campsite under tall pines

FAQ

Parking & Directions FAQ

Where is Millersylvania State Park?

At 12245 Tilley Road S, Olympia, WA 98512, on the shore of Deep Lake about 20 minutes from downtown Olympia. The park map shows access from I-5 Exit 95 and Maytown Road SW.

Do you have to pay to park at Millersylvania?

Yes. Day-use parking needs a Discover Pass, $10 for one day or $45 for a year. Pay stations at the entrance and at the ranger station sell both. Campers staying in the park don't need one.

Can I buy a Discover Pass at Millersylvania?

Yes. The park has automated pay stations at the entrance and at the ranger station and gift shop that sell one-day and annual passes.

How far is Millersylvania from Olympia?

About 20 minutes by car, according to Washington State Parks.