Mapping > View Data Summaries (River Subbasin) > Upper San Juan Profile

The Upper San Juan Subbasin

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To view mapped wetlands online, click one of the links below.


[+] Mapped Wetland Area



Wetland Mapping Summary

Area of mapped wetlands 28,597 acres
Percent of basin mapped as wetlands 3%


Wetland Area by Type (acres)

Freshwater Herbaceous13,96449%
Freshwater Shrub 1,9007%
Freshwater Forested 46< 1%
Ponds 5,69420%
Lakes 4,57916%
Rivers 2,2748%
Other 141< 1%

Wetland Area Mapped with Modifiers (acres)

Excavated 0< 1%
Dammed 1< 1%
Ditched/Drained 0None
Farmed 0None
Modified by Beaver 0< 1%




[+] Wetland Landscape Stressors



Weltand Area by Stressor Class (acres)

No Stress175,07317%
Low Stress362,07635%
Moderate Stress142,53714%
High Stress132,01013%
Severe Stress229,11822%




[+] River Subbasin Geography and Land Ownership


Total Area and Elevation Range

Total Area 1,040,815 acres 4,212 sq km
Maximum elevation 14,087 ft 4,295 m
Minimum elevation 6,082 ft 1,854 m
Average elevation 8,597 ft 2,621 m


Land Ownership (acres)

Total Federal Lands 532,850 51%
 Bureau of Land Management9,196< 1%
  Total Forest Service Lands 523,654 50%
  Rio Grande National Forest1,638< 1%
  San Juan National Forest522,01650%
Total State 2,997 < 1%
 Colorado Division of Wildlife212< 1%
 Colorado State Land Board2,786< 1%
City, County, and Other Local Government Lands 11 < 1%
Land Trusts and Non-Governmental Organizations 0 None
Tribal Lands 154,251 15%
Private Lands 350,705 34%


Ecoregions (acres)

20: Colorado Plateaus 138,49013%
 20a: Monticello-Cortez Uplands85,8948%
 20c: Semiarid Benchlands and Canyonlands52,5975%
21: Southern Rockies 902,32487%
 21a: Alpine Zone100,09410%
 21b: Crystalline Subalpine Forests59,6486%
 21e: Sedimentary Subalpine Forests95,1069%
 21f: Sedimentary Mid-Elevation Forests467,82545%
 21g: Volcanic Subalpine Forests179,65117%