Parking
Park at East Rim Trailhead, 281 Boston Mills Road. Walk north a short distance on the paved Bike & Hike Trail; the first access point on the left serves East Rim and Post Line.
Overview
About Post Line Trail
Why go
- A short rocky section adds a distinctly technical option to the East Rim circuit.
Heads up
- Post Line is part of a shared mountain-bike network, not a standalone loop.
Map & elevation
The route
Loading the Cuyahoga Valley map
Full mapElevation860–965 ft
Plan your hike
Before you go
Parking
Safety
3 active Cuyahoga Valley alerts
- ClosureTowpath Trail improvement closureThe Ohio & Erie Canal Towpath Trail from Boston Trailhead to Lock 29 in Peninsula is closed for improvements during the August 24–November 20, 2026 closure period.Official details
- CautionCuyahoga River paddling closure and hazardsPaddlers must portage the current river-wide closure near river mile 17 and avoid serious river hazards. - The closure is due to bridge demolition and construction.Official details
The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Cuyahoga Valley Tour Guide
Your drive to Post Line Trail, narrated.
Parkwolf is a GPS audio tour guide for Cuyahoga Valley National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
Recorded for this trailhead
East Rim Trailhead0:00 / 0:26
“You're nearing East Rim Trailhead, access to the park's first mountain-bike trail. Hikers can use the two-point-three-mile loop too, following a narrow, rocky track along a wooded plateau edge.”
Plays as you drive up to this trailhead in the Parkwolf Cuyahoga Valley Tour Guide.
More stories near here in the app
- Why Turtles Claim the Logs
- A Grove That Could Be One Plant
- Wildlife Woods Trail
- A Flower That Makes Heat
- 97 audio storiesacross Cuyahoga Valley’s roads, triggered by GPS as you drive
- Wildlife heatmapsfor Bald Eagle, River Otter, Coyote, and 13 more
- Works offlinemaps, 63 trails, 88 places, and audio download before you lose signal
- CarPlay readysimple controls built for the drive
“Fantastic app with many points of information… It’s great to just turn on while you’re driving and it gives you an audio tour of the national Park. We love it!!!!”
Trail guide
Hiking Post Line Trail
A short line within a full circuitPost Line is a roughly 0.
Post Line is a roughly 0.36-mile rough singletrack segment on the southern side of the East Rim loop, connecting back to the main trail at both ends. The practical outing is the East Rim circuit with Post Line in place of that short stretch; it is not a separate Post Line loop. The National Park Service lists the full circuit at 2.3 miles. The mapped trail line with Post Line measures about 2.1 miles before the short walk from parking to the first access. Allow about 1.5 hours for the circuit and the rocky section.
What the line feels likePost Line crosses a narrow, unpaved boulder field under trees.
Post Line crosses a narrow, unpaved boulder field under trees. Its rocks and uneven tread make this a more technical choice than the mileage suggests. The East Rim system is built for mountain biking as well as hiking, and NPS permits hikers and runners; stay alert for riders and follow posted travel directions.
Access and trail rulesPark at East Rim Trailhead on Boston Mills Road, then walk north a short distance on the paved…
Park at East Rim Trailhead on Boston Mills Road, then walk north a short distance on the paved Bike & Hike Trail. The first access on the left leads to East Rim and Post Line. These trails close when conditions are wet, icy or hazardous, so check the park's current status before setting out. Pets are not allowed.
Wildlife
Wildlife in Cuyahoga Valley
319 sightingsBald EagleMost seen around 7 AMSighting map
12 sightingsRiver OtterMost seen around 7 AMSighting map
103 sightingsCoyoteMost seen around 7 PMSighting map
248 sightingsBeaverMost seen around 8 PMSighting map
492 sightingsWhite-tailed DeerMost seen around 6 AMSighting map
99 sightingsTrumpeter SwanMost seen around 5 PMSighting mapSighting maps show where each species has been reported across Cuyahoga Valley. Wildlife moves, so no sighting is guaranteed.
