Number Mean altitude (m) Slope (ยบ) Area (km2) Total area (km2)
All RGs 413 4623 (431) 17 (6) 0.26 (0.28) 108.27
DMS-RGs 143 4889 (325) 23 (5) 0.05 (0.04) 7.44
G-RGs 202 4546 (412) 14 (4) 0.40 (0.29) 79.79
GF-RGs 41 4265 (430) 15 (5) 0.38 (0.32) 15.51
T-RGs 27 4332 (224) 18 (5) 0.20 (0.13) 5.53