Colorado · United States
- Distance
- 40.3 km / 25.1 mi
- Elevation gain
- 193 m
- Typical duration
- 9 hr 27 min
- Mountain
- Wildlife watching
The directory currently contains 26 quality-checked routes matching this guide in United States. Their average mapped distance is 4.9 km and average recorded ascent is 63 m (207 ft); the longest route in the set is 40.3 km.
This subset represents 0% of the 5,699 quality-checked routes in United States. Its average distance is 4.9 km, compared with 14.1 km across the full local set. Average recorded ascent is 63 m (207 ft), versus 264 m (866 ft) for all quality-checked routes in the same area.
These routes carry the wildlife tag. It identifies a recorded theme, not a guarantee of sightings. Within this set, 18 routes (69%) are rated easy, 2 (8%) are rated hard or expert, and 7 (27%) are recorded as loops. Ratings are computed from available distance and elevation data and do not establish current terrain or access.
Data refreshed September 2026
Choose by the details
A closer look at the first 6 routes in this page’s default ordering. These comparisons describe this sample, not the entire destination or a field-tested recommendation.
1.3 km
Bird Loop TrailCompare the climbing too; shortest does not necessarily mean easiest.
0 m
Bird Loop Trail6 of 6 have ascent data. Missing measurements are excluded.
2 recorded loops
Check start and finish for every option. An unknown shape does not mean a loop, and a loop does not establish access to its start.
Plan the return journey →Distances follow stored route lines; ascent and time are estimates. Current access, surface and technical difficulty need separate checks. How to turn a comparison into a shortlist.
Colorado · United States
Alabama · United States
Connecticut · United States
Massachusetts · United States
Michigan · United States
Colorado · United States
Iowa · United States
Alabama · United States
Delaware · United States
Nevada · United States
Connecticut · United States
Missouri · United States
Missouri · United States
Idaho · United States
Kansas · United States
Missouri · United States
Illinois · United States
Massachusetts · United States
Maine · United States
Arkansas · United States
California · United States
New Hampshire · United States
Florida · United States
Idaho · United States
Arkansas · United States
Maine · United States
The ten highest scoring routes on this page, so you can compare effort before opening any of them.
| Route | Distance | Ascent | Time | Difficulty | Best season |
|---|---|---|---|---|---|
| Rocky Mountain Greenway TrailColorado | 40.3 km | 193 m | 9 hr 27 min | Expert | June to October |
| Wade Mountain Nature Reserve National Recreation TrailsAlabama | 15.7 km | 358 m | 3 hr 50 min | Hard | April to October |
| Bird Loop TrailConnecticut | 1.3 km | 0 m | 16 min | Easy | April to October |
| Great Meadows Bird Observer TrailMassachusetts | 4.7 km | 0 m | 59 min | Easy | April to October |
| Lake LoopMichigan | 2.1 km | 13 m | 28 min | Easy | April to October |
| Hornbek Wildlife LoopColorado | 5.8 km | 145 m | 1 hr 26 min | Moderate | July to September |
| Blue Bird TrailIowa | 1.2 km | 14 m | 17 min | Easy | April to October |
| Dauphin Island Audubon Bird Sanctuary National Recreation TrailAlabama | 4.5 km | 50 m | 1 hr 1 min | Easy | April to October |
| St. Jones Reserve TrailDelaware | 1.7 km | 0 m | 21 min | Easy | April to October |
| Black Canyon TrailNevada | 1.9 km | 26 m | 27 min | Moderate | April to October |
Rocky Mountain Greenway Trail, Wade Mountain Nature Reserve National Recreation Trails, Great Meadows Bird Observer Trail currently rank highest in this filtered set according to the directory score. Open an individual route to inspect its mapped line, elevation profile, data source and planning caveats. Check live access, conditions and local rules with an official source before travelling.
Choosing a route
Compare distance, climbing, route shape and missing information to build a shortlist that fits your day.
Read article →Understanding the map
Understand total ascent, net height change, profile scale and the section breakdown on each mapped route.
Read article →Planning your day
Separate moving time, climbing allowance and stops, then explore how changing your assumptions changes the plan.
Read article →Other shortlists covering the same area or the same kind of terrain.