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Mud Mountain Dam is a U.S. Army Corps of Engineers flood control dam and recreation facility on the White River near Mt. Rainier in Washington State. Visitors to the facility can view the dam, picnic, hike, bike or ride their horses in a scenic woodland setting.  For a printable hiking map, click here.


From Seattle: Driving time 60 minutes
1. Take I-5 South to Hwy 18 East,
2. From Hwy 18 take the Auburn/Enumclaw exit
3. At Auburn take Hwy 164 East to Enumclaw
4. Go through Enumclaw and turn left onto Hwy 410 East
5. Go about 6 miles and turn right onto Mud Mountain Road
6. Go 2.5 miles to Mud Mountain Dam Project

From Tacoma: Driving time 60 minutes.
1. Take Hwy 167 to 410 East to Sumner
2. Hwy 410 East through Bonney Lake, Buckley and Enumclaw
3. In Enumclaw stay on Hwy 410 East
4. Go about 6 miles and turn right onto Mud Mountain Road
5. Go 2.5 miles to Mud Mountain Dam Project

Our office hours are from 7:30 am to 4:00 pm.  If you need additional information, please feel free to call us.  (360) 825-3211 or (206) 764-3717

Shelter Reservations

To reserve a large group shelter, please read the following information before contacting the Park Ranger. To make reservations, the Chinook shelter requires a minimum of 75 people and the Cayuse shelter requires a minimum of 40 people. Rangers begin taking requests January 1st. Reservations can be made for dates between April 27 - September 27. Reservations will be made for no later than 2 p.m. 

Note: "No Shows" may be denied future reservations. 2+ hours late will be considered a "No Show". 

Mud Mountain Dam Park Rangers may be reached at (206) 316-3019. 


Mud Mountain Dam recreation area

Park Hours for 2019 (subject to change):

Jan  02 - Apr 26      9 a.m. to 4 p.m. (Closed Weekends)

Apr 27 - May 10      9 a.m. to 4 p.m.  (Open Weekends)

May 11 - Sep 02      9 a.m. to 8 p.m.  (Open Weekends)

Sep 03 - Sep 29      9 a.m to 4 p.m.   (Open Weekends)

Sep 30 -  Dec 31     9 a.m to  4 p.m.  ( Closed Weekends)


Park Closed:

Monday, January 21 (Martin Luther King Day)

Monday, February 18 (Presidents' Day)

Monday, October 14 (Columbus Day)

Monday, November 11 (Veterans Day)

Thursday, November 28 (Thanksgiving)

Wednesday, December 25 (Christmas)


Wading Pool Approximate Open Dates:

June 01 - Sept 01     (Check back for updates)


The park staff will start closing the park 30 minutes prior to the posted closing time.

Please keep this in mind when making arrangements to visit the recreation area.