The earliest-opening pumpkin attraction in the region with a legitimate cave and multiple evening options, but admission prices are not published online — you must call or email to find out what the visit costs.
Grandpa’s Farm is the earliest-opening fall attraction in southern Montana, unlocking August 29 and staying open through November 1. That early date is a genuine differentiator — families hunting for fall activities in late August will find most regional patches still closed. But there is a catch: the farm does not publish admission prices anywhere online or in public directories. If you want to know what a visit costs, you must call or email first.
What sets Grandpa’s Farm apart is the 100-plus feet of accessible cave space. Most pumpkin patches offer corn mazes and pumpkin picking. Few offer actual geology. The cave system here is real, described as suitable for exploration by visitors willing to handle uneven terrain and confined darkness. For families curious about underground spaces or kids who like the idea of cave adventure, this is a standout feature worth planning around.
The farm lists corn maze, haunted corn maze, pumpkin patch with pick-your-own options, train rides, hayrides, cave exploration, and farm animals. It is not yet clear whether admission to the basic farm includes all attractions or if some (such as the haunted maze) operate only at specific times or require separate tickets. This is exactly the kind of detail you should confirm when you call about pricing.
Opening August 29 means the farm is open when most regional alternatives are still closed — a genuine advantage if your family wants fall activities before Labor Day. But that also means August 29 falls in what is typically still summer weather in southern Montana. Early visits may not feel like “fall” yet, which matters if the season itself is the draw.
Weekday hours are evening-only (6 to 9 p.m. on Wed and Thu, 6 to 10 p.m. on Fri), while Saturday runs 10 a.m. to 10 p.m., offering the most flexibility. The farm operates a haunted section that activates after sunset, so daytime and after-dark experiences are both possible depending on when you visit.
The missing price data is the main friction here. A quick phone call — 406-696-6266 — or email to gpasfarm.billings@gmail.com removes the only real unknown and lets you budget the day properly.
Open August 29 to November 1, 2026, Wednesday through Saturday. Weekday hours (Wednesday and Thursday) are 6 to 9 p.m. (evening-only). Friday is 6 to 10 p.m. Saturday offers the most flexibility at 10 a.m. to 10 p.m. For a full daytime visit, plan on a Saturday.
Three to five hours if you explore the cave and both maze options and ride the train. The cave alone can fill an hour. Two to three hours if you skip the cave or do just one maze.
Four operating days per week (Wed–Sat) means the farm absorbs demand across more days than many regional competitors. Weekday evenings (Wed–Thu) are likely quieter than Saturday.
Free parking is confirmed. Assume field parking on unpaved ground.
The cave has 100-plus feet of accessible space, but caves involve uneven terrain and darkness. Mobility or claustrophobia concerns should be discussed with the farm before your visit.
You need to know the total cost before you drive. The farm does not list admission prices on its website or public directories. Email gpasfarm.billings@gmail.com or call 406-696-6266 to get pricing before you plan the trip. Skip it also if weekday evenings are not an option and you cannot make a Saturday.
The farm features over 100 feet of accessible spelunking space. It is a real cave with uneven terrain and darkness, so young children should be comfortable in dim spaces and on rough ground. Contact the farm directly about age recommendations.
Prices are not published online. Email gpasfarm.billings@gmail.com or call 406-696-6266 to get current admission rates. Knowing this upfront removes the surprise when you arrive.
The farm lists both a corn maze and a haunted corn maze, plus cave exploration, train rides, and hayrides. Admission appears to cover multiple attractions, but you should confirm what is included when you ask about pricing.
August 29 – November 1, 2026. Wednesday-Saturday. Hours: Wed-Thu 6-9pm, Fri 6-10pm, Sat 10am-10pm.
Admission pricing was not published when we last checked.
58th Street West and Grand Ave, Billings, MT 59101, in Yellowstone County. It is one of 11 patches we track in Montana.
We track 11 patches in Montana, 1 of which are free to walk into. The farm has not published a gate price, so it cannot be compared on cost — call before you budget.
Its season runs about 65 days against a regional average of 39, so it is a notably longer window than most of its neighbours, which takes the pressure off picking a weekend.
What sets it apart locally: it has an after-dark attraction, u-pick fields, which most Montana patches on our list do not.
grandpasfarmmt.com · pumpkinpatchesandmore.org · gmail.com
Checked August 2026.