Mill Brook Preserve (Westbrook, ME)

Information kiosk at Northern Trailhead, Mill Brook Preserve, Westbrook, ME
Information kiosk at Northern Trailhead, Mill Brook Preserve, Westbrook, ME

Westbrook, with its proximity to Portland and its gritty mill background, does not instantly come to mind when thinking about hiking in Maine. But Mill Brook Preserve is a 130 acre section of delightfully unlikely green space in Westbrook along Mill Brook, bounded by Route 302 and Methodist Road.  The five miles of trails in the preserve, suitable for hiking, mountain biking, and snowshoeing, can be accessed from four different trailheads.  The best information and trail map can be found at the website of the Presumpscot Regional Land Trust, which holds this land, and coordinates the 28-mile Sebago to the Sea Trail.

Mill Brook Preserve, Westbrook, ME
Mill Brook Preserve, Westbrook, ME

In late May and early June, alewives migrate from Casco Bay upstream in the Presumpscot River, then to Highland Lake through this narrow brook, drawing visitors to the flashing, silvery spectacle. Due to the variation in the flow, breadth, and depth of the Brook, two viewing areas (one north, one south) are identified on the trail map for maximum observation of the alewives’ run.

The Northern Fish Viewing Pool is closest to the MAGAN/Willow Dr trailhead, and the Southern Fish Viewing Pool is by the Methodist trailhead. A note of caution for those attempting a loop – the trail to the east side of Mill Brook from the Southern Trailhead on Perry Court is missing a bridge, and crossing can be anywhere from muddy to difficult in rainy periods.

Flora and fauna, Mill Brook Preserve, Westbrook, ME
Flora and fauna, Mill Brook Preserve, Westbrook, ME

Alewives are not the only wildlife to be found in the forest valley of Mill Brook Preserve. The Preserve abounds with life, from beautiful and unique insects to small mammals and birds, to wildflowers and vines hanging with Concord grapes. One one recent trip in the early fall, I saw a handful of garter snakes sunning themselves on the sandy trail near the Perry Court trailhead.

Mill Brook Preserve, Westbrook, ME
Mill Brook Preserve, Westbrook, ME

The mosquitoes and biting flies can be intense in the early summer, or in the evenings. The trails are quiet and mostly bug-free in the fall, and the spacing of the trees in the young forest creates a patchwork of light and foliage.

The Presumpscot Regional Land Trust also recently opened (in October 2019) a new 1.5 mile loop trail through 32 acres of forest in Mill Brook Preserve South, accessible from a parking area at Millbrook Estates off East Bridge Street in Westbrook. This southernmost trail of the Preserve does not currently connect with the northern side.

Afternoon light, Mill Brook Preserve, Westbrook, ME
Afternoon light, Mill Brook Preserve, Westbrook, ME

The trails are not difficult, overall, but the narrow, winding path up and down ridges in the middle section between the MAGAN and Methodist trailheads might challenge some hikers. Thankfully, the trails provide enough variety that this should not preclude hikers of any ability from enjoying this suburban forest oasis. Navigation along the trails is also forgiving and self-correcting, with maps posted at critical intersections throughout the Preserve.

Mill Brook Preserve in Westbrook, ME, is an unexpected swath of forest, water, and wildlife in the Portland metro area, with five miles of trails and activities for everyone.

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