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Table 5 Number of lightning strikes, area, and strike density for two most heavily struck subsections (Miles and Goudey 1997) within each bioregion in California, 1985 through 2000.

From: Temporal and Spatial Distribution of Lightning Strikes in California in Relation to Large-Scale Weather Patterns

Bioregion Subsection Area Strikes Density
  km2 no. # yr−1 100−1 km−2
North Coast    
Eastern Franciscan 5 070.45 4 919 6
Central Franciscan 491.82 422 5
Klamath Mountains    
Duzel Rock 786.67 3 589 29
Scott Valley 313.73 1 041 21
Cascade Range    
Blacks Mountain 1 796.33 7 666 27
Butte Valley 304.45 1 157 24
Northeastern Plateaus    
Pine Nut Mountains 216.34 1 570 45
Antelope — Mason V. 81.72 580 44
Sierra Nevada    
Markleeville 779.95 6 211 50
Glaciated Batholith 1 838.13 13 018 44
Central Valley    
Northern East Terraces 320.43 661 13
Tehama Terraces 2 956.63 4 262 9
Central Coast    
Caliente Range 1 452.32 1 309 6
Santa Lucia Range 4 976.46 2 991 4
South Coast    
San Gorgonio Mts. 933.82 4 299 29
San Jacinto Mts. 756.07 3 386 28
Southeastern Deserts    
Ivanpah Valley 1 632.37 10 424 54
Sweetwater Mts. 1 763.30 7 040 49