Mercer County Park

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Mercer County Park
Easy trail that skirts the edge of Lake Mercer, travels through woods and along fields and streams.

5.0 miles, easy surface: packed dirt, some roots/mud, mostly level.

Our two cents:

While we normally avoid built-up parks like this, the eastern section of the park loop is all trails and is quite nice.

It is a little confusing/vague in spots so check the notes below.

* Hunting Closures: “Lake North” Region Trails CLOSED Monday-Thursday Dec. 7-31, 2020 and Monday-Saturday Jan. 1-Feb 13. 2021. See park map for area, this hike route does go in this area. *


Print out ahead, none at trail head. You’ll need at least Map 1 and 2 as they show different things.

There is also a phone app for this park that we didn’t realize existed until after our hike.


A different section of the park is in 60 Hikes Within 60 Miles: Philadelphia.

Parking: N40° 15.670′ W74° 37.218′

East Picnic Area. Large lot.


Building at the parking lot, and should be at all lots in the park. May be closed in “freezing weather”.

One of few trail markers

Hike Directions:

This park is difficult to give detailed directions – trail markers are few and far between, there are side trails, and there is a confusing area made more confusing by maps that show different things:

  • Map 1 is from the park site but the legend covers part of the blue trail and obscures the fact that RED and BLUE do not connect
  • Map 2 shows the actual route in this area – a road walk from the power line back to the lot
  • Map 3 has additional biking trails but shows RED and BLUE connecting which they do not

So… the easiest course of action is to ignore the RED trail entirely and just follow BLUE around the park, to the power line cut, and then a road walk:

0.0 – Walk back out of the parking lot, turning LEFT and following the paved park road towards it’s dead end, where the BLUE trail starts, and start following the BLUE trail.

BLUE Trail

0.3 – Continue straight on BLUE when the RED trail crosses. There are a few bridges.

Bridges on BLUE

1.3 – The trail nears Lake Mercer and follows along the water to a Rowing Center building.

BLUE trail near Lake Mercer

Lake Mercer

BLUE trail, approaching the rowing center

Lake Mercer

Walk around the Rowing Center to the driveway (the map shows to go around the back but we saw no path). Walk down the paved driveway.

1.7 – Turn RIGHT down the driveway and walk past a wildlife crossing sign.

Walking out the driveway for the rowing center

Watch for a trail on the RIGHT and re-enter the woods.

It’s still the BLUE trail but it may have been awhile since you’ve seen a marker.

The BLUE trail skirts the edges of fields and comes near the road a few times.

BLUE skirts field edges

Newer bridge on BLUE trail

Water along BLUE trail

3.9 – The trail goes around the edges of water/ponds, the trail arrives at the power line.

4.2 – Cross the power line and turn left, following the power line.

Crossing the power lines

Pass a trail on the right and then another one marked “A”.

Pass "A" on the right

These trails lead into the woods to a muddy swampy area and eventually to a wide stream that is not passable; thusly:

The impassable swampy area that "A" leads to

Keep following the power line cut out, turn right over a small bridge onto Brundtsfield Drive, left on Darvel Drive.

Right on Edinburg Rd. and then right back into the park entrance. [use Map 2 for this].

Hiked: 11/29/15.