Air traffic routes (gray lines) through California and Nevada.

Air traffic routes (gray lines) through California and Nevada. Circle represents the tephra-fall hazard zone for a 1-cm thick

Detailed Description

Air traffic routes (gray lines) through California and Nevada. Circle represents the tephra-fall hazard zone for a 1-cm thick deposit, which spreads about 300 km (186 mi) from the Long Valley area.

Details

Image Dimensions: 450 x 483

Location Taken: US