Milltown State Park
Managed by Montana Department of Fish, Wildlife and Parks
40 acres0.6 mi of trail
Blackfoot River Bridge
Dog rules not recorded
Directionsto the parking lotWebsite ↗
AOutdoors
Outdoors in Bonner-West Riverside
Bonner-West Riverside has 50 acres of parks, 32 for every 1,000 residents
2.4 miles of mapped trail cross Bonner-West Riverside, 1.6 per square mile of land. The biggest trail networks: Milltown State Park (0.6 mi). 7% of Bonner-West Riverside’s land is conserved, about 68 acres.
Ahead of 87% of U.S. towns. What drives it
Conserved land
7%
68 acres · of 1.5 sq mi of land
Trails
2.4 mi
1.6 per sq mi of land
Park land
50 ac
32 acres per 1,000 residents
Near a park
82%
of residents within ½ mile
Bike routes
1.3 mi
1.3 mi paths
What kind of outdoors town is Bonner-West Riverside?
Read from the map. The page puts what stands out first.
Outdoors grade
How much outdoors does Bonner-West Riverside have?
On conserved land, trails, park land and how close residents live to a park, Bonner-West Riverside is ahead of 87% of U.S. towns. All four inputs are above most U.S. towns; trail miles rank highest, the share of residents near a park lowest.
A
OutdoorsA character grade: shown, never part of Bonner-West Riverside’s overall grade.
Conserved land7% of the land · typical MT town 10% · U.S. 4%B+Trails1.6 miles of mapped trail per square mile of land (2 mi) · MT 0.7 · U.S. 0.4APark land32 acres of park per 1,000 residents (50 acres) · MT 14 · U.S. 13B+Parks close to home82% of residents within a half mile of a park · MT 91% · U.S. 72%B+
All U.S. towns we grade (21,298)Ahead of 87%
LessMore
Montana towns conserve more land than most (a typical one, 10%; the U.S., 4%), so Bonner-West Riverside’s 7% is ahead of 38% of Montana towns, while its trails per square mile lead 76% of them.
Water is 5% of Bonner-West Riverside’s area (0 of 2 square miles), so every share here is of land; over land and water together, the conserved share would read 7%.
How sure. Graded on any three of the four inputs instead, the letter would range from A− to A. Trails and many small parks come from OpenStreetMap, mapped by volunteers, so coverage varies from town to town; the half mile is a straight line from each census block, so a river or highway in the way isn’t counted against it.
PAD-US, OpenStreetMap (© OpenStreetMap contributors), Census 2025 Gazetteer and 2020 blocks; details in Sources below. How TownRatings grades the outdoors →
The map
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
Easements protect land from building but are usually private.© OpenStreetMap contributors · USGS PAD-US
Places to walk
Pick a walk
The longest trail network is Milltown State Park, with 0.6 miles. Directions go to the nearest trailhead or public parking.
Who protects it
68 conserved acres
7% of Bonner-West Riverside’s land. Water is left out: Bonner-West Riverside has 1.5 square miles of land and 0.1 of water, so the share counts land only. Who manages Bonner-West Riverside’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
State fish & wildlife48 ac
U.S. Forest Service13 ac
Land trusts & nonprofits8 ac
State Park · 48 acNational Forest · 13 acPrivate Other or Unknown · 8 ac
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Milltown State Park State Park | State fish & wildlife | 48 | Open |
| Lolo National Forest National Forest | U.S. Forest Service | 13 | Open |
| Potomac - South and East I-90 427 Private Other or Unknown | Land trusts & nonprofits | 8 | Closed |
Things to do
1 places to go in Bonner-West Riverside
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Playgrounds in Bonner-West Riverside
1 playground without a name on the map. Tap “Show all on map” to see it.
Trails & water
1 named trail
Named trails
Open to bikes · 0.6 mi
Blackfoot River Bridge0.1 mi
Biking & sports
1.3 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
1.3 mi
off-road bike paths
Courts & fields
1Basketball
Includes school and college facilities, which aren’t always open to the public.
When to get out
The best walking months in Bonner-West Riverside: May and July to September
NOAA’s 1991–2020 normals for the town and the daylight at its latitude. Outlined months have long days, highs of 59 to 86 °F and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 8.9 | 10.2 | 11.8 | 13.5 | 15.0 | 15.9 | 15.5 | 14.2 | 12.5 | 10.8 | 9.3 | 8.5 |
| High (°F) | 33 | 37 | 46 | 54 | 64 | 71 | 82 | 81 | 71 | 55 | 39 | 31 |
| Rain (in) | 2.2 | 1.8 | 1.6 | 2.0 | 2.4 | 2.7 | 1.0 | 1.0 | 1.3 | 1.9 | 2.2 | 2.2 |
August is the driest month (1.0 in) and July the warmest (highs of 82 °F). 2.7 inches fall in June, the wettest month. The climate in Bonner-West Riverside →
Next door
Bonner-West Riverside and its neighbors
Bonner-West Riverside has the most mapped trails of the 2 towns around it. Tap a town to see its outdoors.
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| Bonner-West Riverside | 7% | 1.6 | 32 | 82% | A |
| Piltzville | — not graded: under 1,000 residents or part of its town | ||||
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Bonner-West Riverside
Where can I hike in Bonner-West Riverside?
The longest trail networks: Milltown State Park, 0.6 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Bonner-West Riverside is conserved land?
7% of its land, against a typical 10% for a Montana town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Bonner-West Riverside’s trails?
Milltown State Park and Hellgate Lions Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Bonner-West Riverside?
1.3 miles of bike routes are on the map: 1.3 of off-road paths.
Is there public land near Bonner-West Riverside?
90,383 acres of parks and open public land lie inside Bonner-West Riverside or within 10 miles of it (PAD-US), 63 of them inside the town line.
How much outdoors does Bonner-West Riverside have?
Ahead of 87% of U.S. towns on the Outdoors grade. The grade combines the share of land that is conserved, miles of mapped trail per square mile of land, park acres per 1,000 residents and the share of residents within a half mile of a park. It’s a character grade, so it isn’t part of the overall grade. How it works.
Trail talk
Conditions, parking and favorite walks from Bonner-West Riverside neighbors.
Share a tip
Sources
Where this page comes from
Conserved and public land: USGS Protected Areas Database of the United States (PAD-US), service updated July 2026. Parks, trails, playgrounds, beaches and other places: OpenStreetMap (© OpenStreetMap contributors, ODbL), map data as of 2026-10-28. Land and water area: Census 2025 Gazetteer. Residents near a park: 2020 Census blocks. National Register: National Park Service. How TownRatings grades the outdoors →