Skip to content

Map Activities Discover Guides Trips Saves

A map of everywhere you can sleep outside in the U.S., with the weather and cell signal to match. Built to stay free.

Explore

Map
Hiking
State guides
Discover

Plan

Trip planner
My trips
Saves
Offline downloads

About

Privacy
Data deletion

© 2026 Roaming.Camp · Data from NPS, Recreation.gov, BLM, USFS, NWS, and the FCC.Operating on ceded ancestral land.Photography via Unsplash.

Leave it better than you found it.

Hike

Obt-4

Near Sauk Trail Lake

19.6 mi one way · 342 ft gain · 713 ft high point · Moderate

IL · OpenStreetMap contributors

About Elevation Highlights Map More hikes

About this hike

OBT-4 is a 19.6-mile one-way segment with 342 feet of climb passing near Sauk Trail Lake in the Chicago Heights area.

Elevation

342 ft of gain and 247 ft of descent.

More hikes nearby

Ranked the same way, within twenty-five miles.

24 mi from you
Green Belt Trail
- Summits Mount Tuthill
- Inside Indiana Dunes National Park
- Camp under a mile away
4.3 mi out & back · 290 ft gain · Easy
Indiana Dunes National Park · Camp under a mile away

Elevation along the trail from the start. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Sauk Trail LakeNearby · 13.5 mi in

Nearby reading

Prairie State College
Bloom High School
Bloom Township High School District 206
Chicago Heights, Illinois
Marian Catholic High School (Illinois)

Map

The route at the trailhead. Drag with two fingers, or hold a key to zoom.

Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Download the trail and feature data.

At a glance

Length: 19.6 mi
Shape: One way
Gain: 342 ft
Descent: 247 ft
High point: 713 ft
Low point: 596 ft
Difficulty: ModerateFrom 19.6 mi and 342 ft of climbing
Managed by: OpenStreetMap contributors
State: IL
Camps within 15 mi: 0
Trailhead: 41.5571° N · 87.5533° W

Get directions Open the map

24 mi from you

Cowles Bog Trail

Summits Mount Tuthill
Inside Indiana Dunes National Park
Camp under a mile away

4.5 mi loop · 300 ft gain · Moderate

Indiana Dunes National Park · Camp under a mile away

Bailley / Chellberg Trail

Near Southeast Pond
Inside Indiana Dunes National Park
Camp under a mile away

8.5 mi out & back · 291 ft gain · Moderate

Indiana Dunes National Park · Camp under a mile away

Little Calumet River Trail

Near Southeast Pond
Inside Indiana Dunes National Park
Camp under a mile away

5.2 mi out & back · 193 ft gain · Easy

Indiana Dunes National Park · Camp under a mile away

Rocky Glen Trail

Ends at Sawmill Creek Waterfall

0.5 mi out & back · 27 ft gain · Easy

IL

Orange Unpaved Loop

Ends at Saganashkee Slough

6.1 mi loop · 535 ft gain · Moderate

IL

More like this

Hikes that read like this one, wherever they are.

Obt-1
- Ends at Lake Michigan
5.4 mi out & back · Easy
IL
Obt-5
- Ends at Saganashkee Slough
- 1,042 ft of climbing
15.0 mi loop · 1,042 ft gain · Hard
IL
Obt-8
- Passes a waterfall
37.0 mi one way · 575 ft gain · Hard
IL
Obt-10
- Ends at Lake Michigan
22.9 mi out & back · 342 ft gain · Moderate
IL

Signal

Cell coverage here

Verizon5G · Excellent
AT&T5G · Good
T-Mobile5G · Excellent

FCC coverage data · signal varies in remote terrain

Weather

7-day forecast

Wed74°60°Sunny
Thu70°50°Chance Rain Showers
Fri64°51°Partly Sunny
Sat65°52°Chance Showers And Thunderstorms
Sun65°53°Chance Rain Showers
Mon67°52°Chance Rain Showers
Tue65°Rain Showers Likely

Wed: Sunny · wind 0 to 15 mph SSW

National Weather Service · refreshed hourly