MLRA 28A – Ancient Lake Bonneville (previously Great Salt Lake Area), and MLRA 28B – Central Nevada Basin and Range
The Ancient Lake Bonneville (previously called the Great Salt Lake Area) Major Land Resource Area (MLRA 28A) occupies a large part of western Utah and narrow portions of Nevada and Idaho. The Central Nevada Basin and Range MLRA (28B) occupies a large portion of central Nevada. The report linked below contains state and transition models (STMs) for 38 Disturbance Response Groups (including 170 Ecological Sites) within the MLRAs.
MLRA 28A and 28B State and Transition Models Report (large file, be patient with the download)
Back to the STM main page.
Major Land Resource Areas (MLRAs) located in and adjacent to the Great Basin Region: Central Rocky and Blue Mountain Foothills (10), Snake River Plains (11), Klamath and Shasta Valleys and Basins (21), Malheur High Plateau (23), Humboldt Basin and Range Area (24), Owyhee High Plateau (25), Carson Basin and Mountains (26), Fallon-Lovelock Area (27), Ancient Lake Bonneville (28A), Central Nevada Basin and Range (28B), and Southern Nevada Basin and Range (29) (derived from USDA-NRCS, cited in Miller et al. 2013, and updated with USDA-NRCS 2022 nomenclature). STMs have been created for all MLRAs but 11, 21, and 27 shown here.