You've probably done this before. You check the Auburn Valley State Park website, see that Steamin' Days is happening the first Sunday of the month, load the kids into the car, and drive down Creek Road toward the Marshall Mansion. Somewhere along the way you pass the turn for Yorklyn Road, maybe glance at a sign for the Center for the Creative Arts, and keep driving. You've got a steam train to catch.
What you probably don't know is that on that same first Sunday, CCArts is running its own market a few minutes away. Nobody at either place tells you this. The state park's calendar doesn't mention CCArts. CCArts doesn't mention Steamin' Days. Two organizations less than a mile apart on the same stretch of Route 82 have landed on the identical recurring date, and as far as either one's own marketing goes, they might as well be in different counties.
This fall, the coincidence gets denser. Late September and early October in Hockessin and Yorklyn aren't spread evenly across the calendar. They're stacked into two specific windows, eight days apart, and if you only know about one of them, you're leaving half your neighborhood's actual fall unused.
Two "First" Habits That Never Compared Notes
Auburn Valley State Park, formerly known as Auburn Heights Preserve, runs Steamin' Days the first Sunday of the month from June through November. It's the park's signature event, rides on the 1/8-scale Auburn Valley Railroad and in the antique Stanley Steamer collection housed at the Marshall Steam Museum, all set against the 1897 Queen Anne mansion the Marshall family once called home.
The Center for the Creative Arts, a Yorklyn nonprofit that's been running visual and performing arts programming since 1979, holds its own recurring event on almost the identical schedule. The Market at CCArts, a handmade-goods market with a food truck and bake sale, happens the first Sunday of October on the CCArts field.
Neither institution's calendar cross-references the other. But here's what the dates actually look like when you line them up for this fall:
| Date | Event | Venue |
|---|---|---|
| Sat, Sept. 26 | Craft show (last Saturday in September) | Woodside Farm Creamery |
| Sat, Sept. 26 | Hot Jam Music Festival | Center for the Creative Arts |
| Sat, Sept. 26 | Tree Festival | Mt. Cuba Center |
| Sun, Oct. 4 | Steamin' Days | Auburn Valley State Park |
| Sun, Oct. 4 | The Market at CCArts | Center for the Creative Arts |
That's not a loose scattering of fall activity. That's two specific days, September 26 and October 4, doing almost all the work.
Why September 26 Is Already a Three-Way Split
Start with the Saturday. Woodside Farm Creamery, the Mitchell family's dairy farm on Little Baltimore Road, has been milking cows in Hockessin since 1796. Its craft show, featuring dozens of local artisans alongside the farm's own ice cream stand, traditionally lands on the last Saturday in September. In 2026, that's September 26.
The same day, CCArts hosts its Hot Jam Music Festival on the same field where the October market will happen a week and some change later. And a few miles north, Mt. Cuba Center runs its Tree Festival, also dated to September 26 on this year's regional festival calendar.
Three separate draws, three separate organizations, one Saturday. If you're mapping a day around it, the order that makes sense is early at Woodside while the craft vendors and the farm's picnic tables are still uncrowded, then Mt. Cuba Center for the afternoon light through the trees, then back to CCArts for Hot Jam once the sun starts to drop. It's a full day built from three things that, individually, would each read as a modest local outing. Stacked together, they cover more ground than most people plan for on a single Saturday.
The Following Sunday Doubles Down
Eight days later, October 4 repeats the pattern with two venues instead of three, but the overlap is tighter because both events are recurring monthly fixtures rather than one-off fall specials. Auburn Valley State Park runs Steamin' Days. CCArts runs its market. Same first Sunday, same short drive between them.
If you're heading to Steamin' Days anyway, it's worth knowing what the park's own trail data says about where people actually spend their time. Auburn Valley has roughly 4 miles of trail across three routes, and the one most visitors default to, the paved 1.3-mile loop that circles near the mansion, is also the shortest and flattest. The longer route, the Marshall Bridge Preserve Trail, runs 2.7 miles with 318 feet of elevation gain, more than double the mileage and nearly all of the climbing in the park packed into a single trail that the steam-train crowd rarely touches. If you've been to Steamin' Days three or four times and only ever walked the loop by the mansion, you've seen the museum but not most of the park's actual terrain.
What Neither Calendar Tells You
Here's the part that's easy to miss if you only think of Auburn Valley State Park as something that's "always been there." It hasn't, not in its current form. The land started as a state-acquired preserve in 2002, grew through a series of purchases over the following years, and wasn't formally dedicated as Auburn Valley State Park until November 9, 2018, when Delaware's 17th state park opened with Governor John Carney and DNREC officials on hand. Eight years as an official state park is not a long institutional life, especially set against Woodside Farm Creamery's 230 years of continuous family farming a few miles down the same road, or CCArts closing in on half a century of running classes and shows out of Yorklyn.
That mismatch in age is part of why the calendars never talk to each other. These are not sibling organizations coordinating a shared events strategy. They're a state park, a nonprofit arts center, and a family dairy farm, each running its own programming on its own timeline, and the overlap on September 26 and October 4 this year is closer to coincidence than design. Nobody's marketing department connected these dots for you. You had to line up the actual dates to see it.
Making the Two Days Work
If you're picking one day over the other, think about what you actually want out of it. September 26 is the bigger, louder day, three separate events with more total ground to cover and less predictability about crowds since it's not a monthly fixture at any of the three stops. October 4 is quieter and more repeatable, though not endlessly so. Steamin' Days runs first Sundays from June through November, which means the season has exactly one more date left after October 4, the first Sunday in November, before the schedule pauses until next summer. The CCArts market's exact cadence beyond October wasn't confirmed in what's publicly posted, so if you want to catch both events on the same day, October 4 is the one to circle now.
Either way, the drive between Woodside Farm Creamery, Auburn Valley State Park, and CCArts is short enough that none of this requires a full day of driving. It requires knowing the dates exist in the first place, which is more than either venue's own calendar will tell you.
If you're the kind of Hockessin resident who already has Steamin' Days on repeat, consider this the missing half of your fall calendar. And if you're weighing whether this corner of northern Delaware, with its steam museums, dairy farms, and arts centers tucked along the Red Clay Creek, is the kind of place you'd want to call home rather than just visit, Kristina Rice can walk you through what's actually for sale in Hockessin and the surrounding Yorklyn corridor. Browse the Hockessin neighborhood guide or reach out directly to start the conversation.
