Zone 3
Southwest (Texas, New Mexico, Arizona)
Arizona
Marshall Gulch to Aspen Loop
3.8 mile loop; 831ft. elevation gain; Moderately Strenuous
Forest, creek; Tucson
Marshall Gulch to Aspen Loop Guide
New Mexico
Lake Katherine
13.1 miles out & back; 3,090ft. elevation gain; Strenuous
Lake, forest, mountains, forest; Santa Fe National Forest
Texas
Turkey Creek Trail
2.8 mile lollipop loop; 168ft. elevation gain; Moderate
Creek, forest; Austin
Zone 4
Rocky Mountain States (Montana, Idaho, Wyoming, Colorado)
Idaho
Upper Palisades Lake
14.4 miles out & back; 1,726ft. elevation gain; Moderate
Lake, mountains, views, creek; Targhee National Forest
Upper Palisades Lake Trail Guide
Norton-Big Lost Lakes Loop
4.9 mile lollipop loop; 1,596ft. elevation gain; Strenuous
Creek, forest, lake, mountains, wildflowers; Sawtooth National Forest
Norton-Big Lost Lakes Loop Trail Guide
Montana
Hyalite Peak
14.7 miles out & back; 3,265ft. elevation gain; Moderate
Mountains, meadows, lakes; Gallatin National Forest
Siyeh Pass
10.0 miles out & back; 3,120ft. elevation gain; Strenuous
Views, forest, meadows, mountains, stream, waterfall; Glacier National Park
Wyoming
Alpine Lakes Loop
11.8 mile loop; 1,075ft. elevation gain; Strenuous
Views, mountains, lakes, meadows; Snowy Range
Alpine Lake Loop Trail Guide (or add on Shelf Lakes)
Amphitheater Lake
10.2 miles out & back; 2,980ft. elevation gain; Strenuous
Lake, mountains, views, forest; Grand Teton National Park
Colorado
Fitzpatrick Peak
3-ish miles out & back; 958ft. vertical gain; Moderate
Views, meadows, mountains; Tincup Pass
Ice Lakes
7.4 miles out & back; 2,430ft. elevation gain; Strenuous
Views, meadows, lakes, mountains, wildflowers; San Juan Mountains