Upper Souris Wildlife Refuge
Managed by United States Fish and Wildlife Service
5,293 acres8.8 mi of trail
40th Avenue Northwest
Dog rules not recorded
No trailhead mapped yetWebsite ↗
–Not graded
Outdoors in Callahan Township
Few parks or trails are on the map in Callahan Township
The biggest trail networks: Upper Souris Wildlife Refuge (8.8 mi). 38% of Callahan Township’s land is conserved, about 7,706 acres. 37 miles of mapped trail cross Callahan Township, 1.2 per square mile of land.
Conserved land
38%
7,706 acres · of 31.5 sq mi of land
Trails
37 mi
1.2 per sq mi of land
Near a park
under 1%
of residents within ½ mile
Lakes & rivers
1
2 boat launches
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 Upper Souris Wildlife Refuge, with 8.8 miles. Directions go to the nearest trailhead or public parking.
Who protects it
7,706 conserved acres
38% of Callahan Township’s land. Water is left out: Callahan Township has 31.5 square miles of land and 4.1 of water, so the share counts land only. Who manages Callahan Township’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
U.S. Fish and Wildlife Service13,065 ac
National Wildlife Refuge · 10,642 acConservation Easement · 2,344 acResource Management Area · 79 ac
Good to know
Conserved doesn’t always mean open to visitors. 2,344 acres are conservation easements, usually private land. The walks above are places people visit.
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Upper Souris National Wildlife Refuge National Wildlife Refuge | U.S. Fish and Wildlife Service | 10,642 | Restricted |
| Renville County Waterfowl Production Area Resource Management Area | U.S. Fish and Wildlife Service | 79 | Restricted |
Things to do
2 places to go in Callahan Township
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Boat launches in Callahan Township
2 boat launches without a name on the map. Tap “Show all on map” to see them.
Trails & water
7 named trails and 1 lakes & rivers
Named trails
Unpaved · 36.6 mi
45th Avenue Northwest5.3 mi
81st Street Northwest3.0 mi
82nd Street Northwest0.6 mi
78th Street Northwest0.5 mi
80th Street Northwest0.4 mi
40th Avenue Northwest0.3 mi
41st Avenue Northwest0.2 mi
Lakes & rivers tap for directions
When to get out
The best walking months in Callahan Township: 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) | 8.7 | 10.1 | 11.7 | 13.6 | 15.2 | 16.1 | 15.7 | 14.3 | 12.5 | 10.7 | 9.1 | 8.3 |
| High (°F) | 18 | 23 | 36 | 53 | 66 | 75 | 81 | 81 | 70 | 54 | 36 | 23 |
| Rain (in) | 0.4 | 0.4 | 0.6 | 1.0 | 2.4 | 3.4 | 2.6 | 1.9 | 1.6 | 1.2 | 0.6 | 0.5 |
January is the driest month (0.4 in) and July the warmest (highs of 81 °F). 3.4 inches fall in June, the wettest month. The climate in Callahan Township →
Next door
Callahan Township and its neighbors
Tap a town to see its outdoors.
Plain Township45 miGrassland Township42 miCallahan Township37 miLockwood Township35 miIvanhoe Township32 mi
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| Callahan Township | — not graded: under 1,000 residents or part of its town | ||||
| Grassland Township | — not graded: under 1,000 residents or part of its town | ||||
| Plain Township | — not graded: under 1,000 residents or part of its town | ||||
| Ivanhoe Township | — not graded: under 1,000 residents or part of its town | ||||
| Lockwood Township | — 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 Callahan Township
Where can I hike in Callahan Township?
The longest trail networks: Upper Souris Wildlife Refuge, 8.8 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
Are dogs allowed on Callahan Township’s trails?
Upper Souris Wildlife Refuge doesn’t have dog rules recorded on the map; check the signs at the trailhead.
Is there public land near Callahan Township?
424 acres of parks and open public land lie inside Callahan Township or within 10 miles of it (PAD-US), almost none of it inside the town line.
Trail talk
Conditions, parking and favorite walks from Callahan Township 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 →