Hiking Trail 11, Vollmer Trail, Brown County State Park

Formerly known simply as the Trail 9 extension, Trail 11 ascends quickly from the Ogle Lake valley to the Knobstone Escarpment and leads deep into the western section of the lush forest of Brown County State Park in Indiana.

RELATED: The Best Hiking Trails in Brown County State Park, with Maps and Rankings


Trail 11 (Vollmer Trail) Interactive Hiking Map

You can use this interactive map at the trail! Here’s how

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Trail 11 (Vollmer Trail) map GPX file

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Trail 11 (Vollmer Trail) trailhead. From the park’s west gate entrance, head east on W Gate Entrance Rd 3 miles to Ogle Lake Rd. Continue south 1.5 miles to the Ogle Lake parking lot. From the north gate entrance, head south on Brown County State Park Rd for 2 miles. Continue onto Horseman Camp Rd for half a mile, then turn a slight left onto Ogle Lake Rd. Follow Ogle Lake Rd 1.5 miles to the parking lot. The Trail 7 trailhead (which feeds into Trail 11) begins at the steps leading up to the Ogle Lake dam.



 Hiking Time

2-3 hours

 Total Distance

2.7 miles one way

 Route type

Out and back


$7/vehicle (in-state), $9/vehicle (out-of-state)

 GPS Location

39.160667, -86.248694


Allowed on 6-foot leash

 Sun exposure

Dense tree canopy




Copperheads, timber rattlers, ticks



 Kid friendly


 Hiking Trail 11 (Vollmer Trail)

Start out on the Trail 7 trailhead and follow the path south across the dam at Ogle Lake.

Dirt hiking trail leading across a dam past Lake Ogle at Brown County State Park, Indiana.

Once across the dam you will see a sign for Trail 11, also called Vollmer Trail. It was named after Bob Vollmer who was a long-time Chief Surveyor for the Indiana Department of Natural Resources and retired in 2020 at the ripe age of 102.

Hiking waypoint sign at the Trail 11 trailhead, a.k.a. Vollmer Trail, Brown County State Park, Indiana.

From here the trail begins to climb immediately up the Knobstone Escarpment, gaining 150 feet in elevation over the next half mile before plunging down the other side into a ravine.

Hiking point of view, Trail 11 ascends up a steep ridge at Brown County State Park.

Snaking through the lush Brown County forest, you’ll again climb and descend another ridge and pass the forgotten Dogwood Lane – it exists only on maps – which connects to Hillside Drive. Out here you’ll be lucky (or unlucky depending on opinion) to see another soul.

Hiking Trail 11 winds through a young stand of trees at Brown County State Park, Indiana.

At a little over two and a half miles, Trail 11 ends and connects at the top of a ridge with the Trail 9 loop. Heading west will take you to Taylor Ridge Campground where there are vending machines and the most immaculate park bathrooms I’ve ever seen. Taking the eastern route will entail descending into yet another ravine before looping back.

At around 3 miles, the Trail 9 loop will add considerable time and distance to your day hike, but if you’ve ever wanted to do it, this might be your best opportunity. Unless you’re camping at Taylor Ridge, there is no visitor parking at the Trail 9 trailhead.


 Use this map on your hike!

Load this web page on your phone while you still have service.

Then, tap the arrow icon on the map to show your current location and follow along.

Tap the layers icon to switch between topo, satellite and other helpful map layers.

To save battery life, put your device in airplane mode. GPS still works even without service!


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