Nestled in Piedmont’s Red Clay Valley, visitors to Auburn Valley State Park will discover the history of the Marshall Family, Yorklyn’s rich industrial history, and the revitalization of this site. Previously known as Auburn Heights Preserve, Auburn Valley State Park features new hiking and paved biking trails, the historic Marshall Mansion completed in 1897, the Marshall Steam Museum, the Auburn Valley 1/8-scale railroad, and much more.

Special thanks go to Tom and Ruth Marshall for their generous donation of this Auburn Valley estate to Delaware State Parks.


Auburn Valley State Park
3000 Creek Rd, Hockessin, DE 19707, United States



Trails + Auburn Heights Mansion Grounds
Open daily, 8 am to sunset
Parking available in the Yorklyn Bridge lot
Sunset today is 05:46 pm*

Park Office
Monday – Friday, 8 am to 4 pm year-round

Open daily, 8 am to sunset

How To Get There

In-state vehicle: $4 Daily
Out-of-state vehicle:
$8 Daily
Annual Passes are available!

Mansion Tours:
$8 adult/$4 child
Steam Museum:
$8 adult/$4 child
Admission to both Mansion and Museum:

Contact Details

630 Benge Road
Yorklyn, DE 19736
(302) 729-4280

Programs Office at Marshall Mansion
3000 Creek Rd
Yorklyn, DE 19736
(302) 239-5687

Email them via their contact page.


Area Attractions

Suggested Equipment for Auburn Valley State Park Adventures:


The following activities within the park should be done with utmost caution. Make sure that you have the proper protective gear and equipment necessary to make your adventures safe and accident-free. We advise you to read the TIPS underneath each activity to serve as a guide on what you may need to bring in order to enjoy your stay fully.

Activities & Tips


Auburn Valley State Park is the largest state park in America and a must-visit state park in Delaware. Check out other state parks in Delaware here.

DELAWARE State Parks