Zone 3
Southwest (Texas, New Mexico, Arizona)
Arizona
![](https://live.staticflickr.com/65535/32720340347_5214e1477c.jpg)
Arizona Hot Springs (Ringbolt Hot Springs)
5.8 mile loop; 1,176ft. elevation gain; Strenuous
Canyon; hot spring; views; Boulder City (Las Vegas)
Arizona Hot Springs Trail Guide
![](https://live.staticflickr.com/4595/39394055501_5b8e66c627.jpg)
San Tan Mountains Loop
4.7 mile lollipop loop; 739ft. elevation gain; Moderately Strenuous
Views; cacti; mountains; Phoenix
San Tan Mountains Loop Trail Guide
New Mexico
![](https://live.staticflickr.com/7496/15881472347_610a60012c.jpg)
Cabezon Peak
2.1 miles out & back; 1,347ft. elevation gain; Strenuous
Views; volcanic; geological interest; Jemez Mountains/Los Alamos
![](https://live.staticflickr.com/8051/8131557694_366c89c8d0.jpg)
Alkali Flat
5.0 mile loop; 95ft. elevation gain; Moderate
Sand dunes; views; flora interest; White Sands National Park
Texas
![](https://live.staticflickr.com/2599/4189147191_737e69c397.jpg)
Indiangrass, Rimrock, and Creek Loop
3.6 mile loop; 528ft. elevation gain; Moderately Strenuous
Views; prairie; forest; stream; Balcones Canyonlands National Wildlife Refuge
Indiangrass, Rimrock, and Creek Loop Trail Guide
![](https://live.staticflickr.com/478/20029786222_498d1eb7a2.jpg)
Spicewood Springs Trail
3.8 mile lollipop loop; 291ft. elevation gain; Moderately Strenuous
Waterfall; stream; forest; Colorado Bend State Park
Zone 4
Rocky Mountain States (Montana, Idaho, Wyoming, Colorado)
Idaho
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Adelmann Mine & Lucky Peak
9.5 miles out & back; 2,435ft. elevation gain; Moderate
Ghost town; views; mountains; mine; Boise
Adelmann Mine & Lucky Peak Trail Guide
Montana
![](https://live.staticflickr.com/4690/38348120814_2e2d3364ce.jpg)
Sypes Canyon Trail
6.4 miles out & back; 1,599ft. elevation gain; Moderate
Views; forest; mountains; Bozeman
Wyoming
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Popo Agie Falls
3.3 miles elevation gain; 670ft. elevation gain; Moderate
Waterfall; views; forest; Sinks Canyon State Park
![](https://live.staticflickr.com/7304/12145696405_063d724216.jpg)
Terraced Falls
3.9 miles out & back; 362ft. elevation gain; Moderate
Waterfall; forest; creek; Yellowstone National Park
Colorado
Shorthorn-Longhorn Loop
6.8 mile lollipop loop; 1,177ft. elevation gain; Moderate
Views; forest; mountains; Golden
Shorthorn-Longhorn Loop Trail Guide
![](https://live.staticflickr.com/7657/26833962044_dc13d50569.jpg)
Mount Falcon West Loop
3.6 mile loop; 638ft. elevation gain; Moderate
Views; forest; mountains; Morrison