1
Acre Island Preserve
Managed by Georges River Land Trust
80 acres1.8 mi of trail
100 Acre Island Trail
Dog rules not recorded
No trailhead mapped yet
Outdoors · Union
Union, ME parks, trails & bike paths
About 5.2% of Union is conserved land, roughly 1,133 acres. There are about 5.7 miles of mapped trails, and the biggest networks are in Acre Island Preserve (1.8 mi).
Conserved land, trails, parks and bike routes in Union, measured from OpenStreetMap and USGS data.
At a glance
Union outdoors
Conserved land
5.2%
1,133 of 21,927 acres
Trails
5.7 mi
0.2 mi per sq mi · 3 on conserved land
Parks & preserves
8
425 conserved acres per 1,000 residents
Bike routes
0.0 mi
0.0 mi lanes · 0.0 mi off-road paths
Conserved land is a share of the whole town area. Bike lanes are often missing from the map in smaller towns, so that number is likely low.
Map
Conserved land, trails & bike routes
Tap a number or a place below to zoom in© OpenStreetMap contributors · USGS PAD-US
Places to walk
Parks & preserves with trails
Ranked by mapped trail miles. Directions go to the nearest marked trailhead or public parking.
2
Clarry Hill Highlands
Managed by Midcoast Conservancy
212 acres0.3 mi of trail
Clarry Hill Preserve Trail
Dog rules not recorded
No trailhead mapped yet
3
Clarry Hill Preserve
Managed by Midcoast Conservancy
66 acres0.3 mi of trail
Clarry Hill Preserve Trail
Dog rules not recorded
No trailhead mapped yet
4
Union Fairgrounds
Park
37 acres
Dog rules not recorded
No trailhead mapped yet
All 8 parks & preserves
- Stickney Preserve13 ac
- The Pool Preserve7 ac
- Union Town Common2 ac
- Ayer Park1 ac · Directions
Who protects the land
1,133 conserved acres
Who manages it, from PAD-US. Approximate, because parcels can overlap.
Conserved doesn't always mean open to visitors. 824 acres are conservation easements, which are usually private land. Public access isn't recorded for 21 of 33 parcels. The places listed above are parks and preserves people visit.
Biking & sports
Bike routes, courts & fields
- Painted or protected bike lanes0.0 mi
- Off-road bike paths0.0 mi
- Shoulders & shared lanes0.0 mi
Courts & fields
- Tennis2
- Baseball1
- Basketball1
Counts include school and college facilities, which aren't always open to the public.
Next door
Union and its neighbors
Towns whose outdoors data has been built so far.
| Town | Conserved | Trails | Parks & preserves |
|---|---|---|---|
| Union | 5.2% | 5.7 mi | 8 |
| Washington | 2.1% | 1.0 mi | 2 |
| Warren | 5.1% | 10.3 mi | 4 |
| Appleton | 14.1% | 9.5 mi | 6 |
| Hope | 4% | 2.8 mi | 6 |
| Waldoboro | 8% | 15.2 mi | 25 |
Trail talk
Conditions & tips from neighbors
No recent posts about Union's trails yet. Muddy, icy, a bridge out, where to park: a quick post helps the next person.
Sources: trails, parks, preserves, courts and bike lanes © OpenStreetMap contributors (ODbL), map data as of 2026-09-28. Conserved land: USGS Gap Analysis Project, Protected Areas Database of the United States (PAD-US). Measured against the Census town boundary.
How we measure
"Trails" are OpenStreetMap paths, bridleways, public tracks and unpaved footways, plus footways inside a park or preserve or on a named trail route. Sidewalks are left out. Areas are counted on a 28.4-meter grid, so overlapping parcels count once. "Conserved" includes conservation easements, which protect land from development but are usually private property. Trailheads are the nearest marked trailhead, public parking lot or information board within about 150 meters of a preserve. Dog rules come from OpenStreetMap when someone has tagged them; otherwise we show what's typical for the land manager, or say the rules aren't recorded.