Parking
Use the Brown Mountain Gatehouse parking area on Route 3 (Sound Drive). Cross Route 3 to the Lower Hadlock access; the mapped trail start is a short walk from the lot.

Acadia National Park, ME
A gentle shoreline connector with a trail story from 1881.
Overview
Map & elevation
Plan your hike

The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Acadia Tour Guide
Parkwolf is a GPS audio tour guide for Acadia 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.
See the Acadia audio tourRecorded for this trailhead
Brown Mountain Gatehouse and Its Bells“Brown Mountain Gatehouse is ahead, with stone towers and red-brick bands at a historic carriage-road entrance. Bells let the gatekeepers know when a carriage or rider wanted through.”
Plays as you drive up to this trailhead in the Parkwolf Acadia Tour Guide.
More stories near here in the app
Trail guide
Lower Hadlock Trail is a 0.6-mile point-to-point woodland walk from the Brown Mountain Gatehouse approach to Hadlock Ponds Trail, following the east shore of Lower Hadlock Pond. The path has mostly natural tread, with stone steps, log cribbing and a curved wooden bridge. Allow about 20–30 minutes one way. Turn around at the north junction for a 1.2-mile walk back, or continue onto Hadlock Ponds Trail.
This is an easy connection rather than a summit hike. The shoreline path passes through woods and uses old trail-built features where the ground calls for them; expect a few uneven sections instead of a smooth boardwalk. The route ends at the junction with Hadlock Ponds Trail, where you can decide whether to return the same way or keep walking into the larger pond network.
A route along this corridor was mapped in 1881 as part of the Champlain Society Trail. Harvard students formed the Champlain Society to study Mount Desert Island’s natural history and geology; their early route toward Sargent Mountain roughly followed the present Lower Hadlock, Hadlock Ponds and Norumbega trail alignments.
Lower Hadlock Pond supplies drinking water for Northeast Harbor. Swimming and wading are prohibited, and dogs must stay out of the water. Dogs may use the trail on a leash no longer than six feet.
Wildlife
131 sightingsBald EagleMost seen around noonSighting map
21 sightingsPeregrine FalconMost seen around 10 AMSighting map
403 sightingsWhite-tailed DeerMost seen around 7 PMSighting map
307 sightingsPorcupineMost seen around 7 PMSighting map
205 sightingsBeaverMost seen around 7 PMSighting map
34 sightingsMinkMost seen around 7 PMSighting mapSighting maps show where each species has been reported across Acadia. Wildlife moves, so no sighting is guaranteed.
Keep exploring
ModerateHadlock Loop Carriage Road4.2 mi · 2.2 hr · 0.1 mi awayA gravel loop to three stone bridges, including a 40-foot waterfall.
EasyHadlock Ponds Trail1.6 mi · 1.3 hr · 0.1 mi awayEasy pondside walking and a 1926 carriage-road bridge at the far end.
ChallengingSargent South Ridge Trail2.8 mi · 4.5 hr · 0.5 mi awayA steady south-ridge climb to Sargent’s open, far-reaching summit.
EasyAsticou & Jordan Pond Path1.9 mi · 1.3 hr · 0.5 mi awayA wooded connector reaches Jordan Pond and the Bubbles.
ModerateGolf Course Trail0.5 mi · 30 min · 0.5 mi awayA 1914 spur on Norumbega's wooded southwest flank.
EasyAsticou Ridge Trail0.8 mi · 30 min · 0.9 mi awayA short ridge link from Eliot Mountain into the Asticou path.
ModerateAmphitheater Trail1.4 mi · 1.5 hr · 0.9 mi awayA wooded climb beneath a landmark pink-granite arch.
ChallengingBald Peak and Parkman Mountain Loop2.7 mi · 2 hr · 1 mi awayA steep granite loop to two peaks with ocean views.
Sight · 0.1 mi awayBrown Mountain GatehouseA 1932 stone-and-brick gate marks the carriage-road entrance.
Sight · 0.8 mi awayHadlock Brook BridgeA small stone arch on the car-free Hadlock Loop.
Sight · 0.9 mi awayLittle Harbor Brook BridgeA 1919 granite-faced arch over a shallow brook on car-free roads.
Sight · 1.1 mi awayAmphitheatre BridgeA granite arch curves around two trees toward a waterfall.
Sight · 1.1 mi awayCliffside BridgeA 1932 stone bridge with castle turrets above Jordan Stream.
Sight · 1.3 mi awayWaterfall BridgeA 1925 arch frames Hadlock Brook's waterfall along car-free roads.
Sight · 1.3 mi awayCobblestone BridgeA 1917 carriage-road bridge with an unusual cobblestone arch.
Sight · 1.3 mi awayHemlock BridgeA rare Gothic arch tucked into the car-free carriage roads.Parkwolf’s Acadia ranking