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The Lowell family's green-trimmed ranch house and windmill behind the pond at CALF's Lowell Ranch in Castle Rock

Castle Rock · Community

CALF's Lowell Ranch: Harvest Day on a Working Castle Rock Ranch

By Connor Tien, DougCo Social · Updated September 27, 2026

Address
2330 I-25, Castle Rock
Phone
Hours
By appointment or during CALF programs and events. Fall Harvest Tours: weekdays in October, 10:00 AM–12:00 PM or 12:00–2:00 PM, reservations required.
Price range
$ · Budget-friendly

After Gilly's and a coffee at Oo•de•Lally, we kept going down the frontage road to Harvest Day at CALF's Lowell Ranch. I'd never been over there before, so this was a first for me.

Full disclosure, I wasn't entirely sure what CALF did before we pulled in. It's the Colorado Agricultural Leadership Foundation, a nonprofit John and Bea Lowell started in 2002 to preserve a piece of rural life in the suburbs and promote agricultural education. Their line is "Connecting All People to Agriculture." The ranch was homesteaded in 1878, and the Lowell family has been on it since 1906.

Harvest Day was Saturday, September 26, from 10am to 2pm. It was a minimum $1 donation per person at the gate, so we made a donation, and parking was free.

What's out there at Harvest Day

The chuckwagon. Right after the free bread and butter (I passed, but apparently it was great with the fancy salt), there's an old chuckwagon with a fire going. A gentleman in a Cold War veteran hat was handing out fresh-pressed apple juice. I didn't have any, but the people around us were really enjoying it.

An old covered chuckwagon and a fire pit set up under a canvas awning at CALF's Harvest Day

The hay ride. No hay on it, which is fine. It's a tractor pulling you out to the back of the property, and somebody was riding along in a full cow suit, which was kind of funny. They dropped us off at the big tent.

Someone in a cow suit riding along on the tractor-pulled hay ride wagon at CALF's Harvest Day

The vendor tent. A martial arts group, jewelry, a handful of foundations, Douglas Land Conservancy, and Douglas County 4-H, whose own newsletter listed air rifle and archery demos plus a STEM table. Scouts were selling food.

The donkeys. There are two. One was extremely friendly and came right up to be pet. The other, Maria, was a little skittish, did some running around, and wanted nothing to do with us.

The goats. Eating, mostly. One was hiding behind the hay, and another one was trying to eat a lawn chair just outside the pen.

A donkey standing in the shade of an open barn at CALF's Lowell Ranch
A brown goat eating hay from a feeder at CALF's Lowell Ranch

The barn. Up in the barn, a sign thanks 4-H and the Douglas County Fair Foundation for helping build it. That's where the pigs are, with a couple of young kids keeping an eye on them and a barn cat wandering around. Lots of flies in there, but that's a barn.

A spotted pig eating in a straw-bedded pen in the barn at CALF's Lowell Ranch
Two concrete silos and a food truck along the dirt road at CALF's Harvest Day

The chicken house. My favorite part. They turned an old house into a chicken coop and built a little ramp up to a window, and there were a bunch of chickens running around. A rooster came strutting down while we were standing there, and it ended up being the best shot of the day.

A hen stepping out of the window of the old house coop onto the wooden ramp at CALF's Lowell Ranch
A rooster with dark feathers walking across the dirt at CALF's Lowell Ranch
An old white farmhouse converted into a chicken coop with a wooden ramp at CALF's Lowell Ranch

By the pond. Live music under the trees, ducks on the water, the Lowell house across the pond, and the food trucks and an ice cream stand close by. It was a really nice little setting to sit for a minute.

People on picnic benches listening to live music under the trees by the pond at CALF's Harvest Day
The Lowell ranch house and windmill reflected in the pond at CALF's Lowell Ranch

The pumpkins. We took the tractor back and checked out CALF's pumpkin patch, where people were picking theirs out. We didn't grab one this time. On the way out, the dairy folks gave the little one a plastic cow.

Rows of pumpkins in CALF's pumpkin patch with the red Harvest Day tent in the distance

A couple hundred people came through while we were there, and I'm guessing more earlier in the day.

How to visit CALF this fall

Harvest Day is once a year, but CALF runs Fall Harvest Tours on weekdays in October: 10am to noon or noon to 2pm, both with time for lunch or a snack. You tour the pumpkin patch and pick out a mini pumpkin, visit the livestock, take a hayride if one's available, and make and sample homemade apple butter. It's for ages 2 and up, it needs a group of at least 15, and you have to reserve ahead: 303-688-1026 or [email protected].

Otherwise, the ranch is open by appointment or during CALF's programs and events.

If you go

CALF's Lowell Ranch, 2330 S. I-25 (East Frontage Road), Castle Rock, CO 80104.
Fall Harvest Tours: weekdays in October, 10am to noon or noon to 2pm, reservations required, 15-person minimum.
Booking: 303-688-1026 or [email protected].
Full details, photos and map: CALF's Lowell Ranch on the DougCo Directory. This year's event: Harvest Day at CALF's Lowell Ranch.

Make a day of it

We did Gilly's first thing (here's that visit), grabbed coffee at Oo•de•Lally on Crystal Valley Parkway, then headed down the frontage road to CALF. After that I rolled out to Larkspur for the Douglas County Fall Festival at Sandstone Ranch.

More for the season: every patch compared in our Pumpkin Patches guide, the rest of fall in the Fall Festivals guide, and year-round ideas in Things to Do With Kids.


Sources

  • Our visit, Saturday, September 26, 2026: the activities, animals, vendors we saw, the $1 minimum donation at the gate, the barn sign, and every photo on this page (DougCo Social).
  • CALF: founding by John and Bea Lowell in 2002, the ranch homesteaded in 1878 and the Lowells arriving in 1906. thecalf.org, Lowell Ranch history
  • CALF: Fall Harvest Tour days, times, group minimum, what's included and booking. thecalf.org, Fall Harvest Tour
  • CALF: Harvest Day 2026, pay-what-you-can tickets and free parking. thecalf.org, Harvest Day
  • Douglas County 4-H: the air rifle, archery and STEM booths at Harvest Day. Douglas County 4-H newsletter

Frequently asked questions

What is CALF?

CALF is the Colorado Agricultural Leadership Foundation, a nonprofit that John and Bea Lowell created in 2002 to preserve a piece of rural life within the suburbs and promote agricultural education. It runs the Lowell Ranch on East Plum Creek in Castle Rock.

When was CALF's Harvest Day in 2026?

Saturday, September 26, 2026, from 10am to 2pm at CALF's Lowell Ranch. Tickets were pay what you can, with a $1 minimum per person at the gate, and parking was free.

Can you visit CALF's Lowell Ranch outside Harvest Day?

The ranch is open by appointment or during CALF's programs and events. In October, CALF runs Fall Harvest Tours on weekdays, 10am to noon or noon to 2pm, with advance reservations and a 15-person minimum. Book at 303-688-1026 or [email protected].

What's on a CALF Fall Harvest Tour?

Per CALF: a tour of the pumpkin patch where each guest picks a mini pumpkin, a visit with the livestock, a hayride based on availability, and making and sampling homemade apple butter. It's for ages 2 and up and includes time for lunch or a snack.

Where is CALF's Lowell Ranch?

2330 S. I-25 on the East Frontage Road in Castle Rock. We drove down the frontage road after a coffee at Oo•de•Lally in Crystal Valley.

What animals are at CALF's Lowell Ranch?

On Harvest Day we saw two donkeys, goats, pigs in the barn, ducks on the pond, and chickens and a rooster living in an old house that was turned into a coop.

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