Mapping > View Data Summaries (River Subbasin) > Alamosa-Trinchera Profile

The Alamosa-Trinchera 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 88,636 acres
Percent of basin mapped as wetlands 6%


Wetland Area by Type (acres)

Freshwater Herbaceous74,67084%
Freshwater Shrub 4,3035%
Freshwater Forested 187< 1%
Ponds 4,8005%
Lakes 3,6894%
Rivers 578< 1%
Other 408< 1%

Wetland Area Mapped with Modifiers (acres)

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




[+] Wetland Landscape Stressors



Weltand Area by Stressor Class (acres)

No Stress224,14214%
Low Stress518,61633%
Moderate Stress245,23516%
High Stress160,38810%
Severe Stress429,07027%




[+] River Subbasin Geography and Land Ownership


Total Area and Elevation Range

Total Area 1,577,461 acres 6,384 sq km
Maximum elevation 14,345 ft 4,374 m
Minimum elevation 7,389 ft 2,253 m
Average elevation 8,683 ft 2,647 m


Land Ownership (acres)

Total Federal Lands 436,595 28%
 Bureau of Land Management197,36113%
 Fish and Wildlife Service26,9102%
  Total Forest Service Lands 212,323 13%
  Pike and San Isabel National Forests, Cimarron and Comanche National Grasslands62< 1%
  Rio Grande National Forest212,24113%
  San Juan National Forest21< 1%
Total State 71,756 5%
 Colorado Division of Wildlife10,545< 1%
 Colorado State Land Board61,2114%
City, County, and Other Local Government Lands 1,309 < 1%
Land Trusts and Non-Governmental Organizations 0 None
Tribal Lands 0 None
Private Lands 1,067,801 68%


Ecoregions (acres)

21: Southern Rockies 693,89544%
 21a: Alpine Zone33,8832%
 21b: Crystalline Subalpine Forests161,21710%
 21c: Crystalline Mid-Elevation Forests16,7501%
 21d: Foothill Shrublands175,31111%
 21e: Sedimentary Subalpine Forests33,6622%
 21f: Sedimentary Mid-Elevation Forests35,8782%
 21g: Volcanic Subalpine Forests172,89411%
 21h: Volcanic Mid-Elevation Forests64,3004%
22: Arizona/New Mexico Plate 883,56656%
 22a: San Luis Shrublands and Hills334,28921%
 22b: San Luis Alluvial Flats and Wetlands430,24927%
 22c: Salt Flats119,0288%