1
Cucamonga-Guasti Regional Park
Managed by San Bernardino County Regional Parks
66 acres0.7 mi of trail
Dog rules not recorded
Outdoors · Ontario
Ontario, CA parks, trails & bike paths
About 1% of Ontario is conserved land, roughly 324 acres. There are about 15 miles of mapped trails, and the biggest networks are in Cucamonga-Guasti Regional Park (0.7 mi), Ontario Soccer Park (0.6 mi), and De Anza Park (0.6 mi).
Conserved land, trails, parks and bike routes in Ontario, measured from OpenStreetMap and USGS data.
At a glance
Ontario outdoors
Conserved land
1%
324 of 31,868 acres
Trails
15 mi
0.3 mi per sq mi · 4 on conserved land
Parks & preserves
34
2 conserved acres per 1,000 residents
Bike routes
14.7 mi
12.2 mi lanes · 2.4 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
Ontario Soccer Park
Park
23 acres0.6 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
3
De Anza Park
Park
19 acres0.6 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
4
Euclid Avenue Historic Park
Park
4 acres0.4 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
5
John Galvin Park
Park
37 acres0.3 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
6
Vineyard Park
Park
9 acres0.3 mi of trail
Dog rules not recorded
7
Civic Center Community Conservation Park
Managed by City of Ontario
1 acres0.3 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
All 34 parks & preserves
Showing 1–10 of 34 parks & preserves
Cucamonga-Guasti Regional Park66 acres · 0.7 mi of trail · San Bernardino County Regional Parks
Ontario Soccer Park23 acres · 0.6 mi of trail
De Anza Park19 acres · 0.6 mi of trail
Euclid Avenue Historic Park4 acres · 0.4 mi of trail
John Galvin Park37 acres · 0.3 mi of trail
Vineyard Park9 acres · 0.3 mi of trail
Civic Center Community Conservation Park1 acres · 0.3 mi of trail · City of Ontario
Veterans Memorial Park9 acres · 0.2 mi of trail
Celebration Park South5 acres · 0.2 mi of trail
James Galanis Park5 acres · 0.2 mi of trail · City of Ontario
Who protects the land
324 conserved acres
Who manages it, from PAD-US. Approximate, because parcels can overlap.
Conserved doesn't always mean open to visitors. 14 acres are conservation easements, which are usually private land. The places listed above are parks and preserves people visit.
Biking & sports
Bike routes, courts & fields
- Painted or protected bike lanes12.2 mi
- Off-road bike paths2.4 mi
- Shoulders & shared lanes0.1 mi
Courts & fields
- Basketball54
- Tennis48
- Baseball23
- Soccer21
- Pickleball7
- Softball7
- Volleyball5
Counts include school and college facilities, which aren't always open to the public.
Nearby
Ontario and its neighbors
Towns whose outdoors data has been built so far.
| Town | Conserved | Trails | Parks & preserves |
|---|---|---|---|
| Ontario | 1% | 14.5 mi | 34 |
| Chino | 12% | 23.5 mi | 36 |
| Eastvale | 14.6% | 7.2 mi | 18 |
| Rancho Cucamonga | 4.3% | 125.2 mi | 37 |
| Upland | 1.7% | 5.6 mi | 12 |
| Fontana | 4.3% | 36.5 mi | 53 |
Trail talk
Conditions & tips from neighbors
No recent posts about Ontario'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 27.7-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.