Click on the PSAs to view ERC, 10-hr, 100-hr, and 1000-hr graphs for that area

PSA 1 -Shoshone PSA 2- Big Horn Basin PSA 3- Big Horn Mountains PSA 4- Powder River Basin PSA 5- Black Hills North PSA 6- Black Hills South PSA 23- Sw SD / NE Nat. Forest PSA 22- Central SD PSA 7- Southwest Wyoming PSA 8- Wind River Basin / Casper Mountain PSA 9- Laramie Mountains PSA 10- Northwest Colorado Plateau PSA 12- Northern Front Range Foothills PSA 24- Ne CO / Se WY / W NE PSA 25- Central NE PSA 11- Northern Colorado Mountains PSA 14- Lower Colorado River Plateau PSA 15- Grand Mesa / White River PSA 13- Northern Front Range Mountains PSA 18- Central Front Range PSA 17- Gunnison / Pike PSA 16- Uncompahgre PSA 26- Se CO / W KS PSA 27- Central-E KS PSA 19- Ute Mountain / Mesa Verde PSA 20- San Juan PSA 21- Southern Front Range