Option 0:(Visit all the possible National park)
Las Vegas ->Zion ->Great Basin ->Arches ->Dead horse point ->Canyonland ->Glen Canyon->Capitol Reef->Bryce Canyon->Grand Canyon ->Las Vegas (2498KM)
Option 1: (go to Grand Canyon last)
Las Vegas ->Zion ->Great Basin ->Arches ->Glen Canyon->Capitol Reef->Bryce Canyon->Grand Canyon ->Las Vegas (2190KM)
Option 2:(go to Grand Canyon first)
Las Vegas ->Grand Canyon ->Zion ......... Bryce Canyon ->Las Vegas (2342KM).
Option 3: (Remove Great Basin)
Las Vegas ->Zion ->Arches.....Grand Canyon ->Las Vegs (1933KM)
Option 4: (Remove Glen Canyon and Capito Reff)
Las Vegas->Zion ->Arches->Bryce Canyon ->Grand Canyon ->Las Vegas(1839KM)
Grand Canyon, Arches,Bryce are the MUST GO places
Great Basin, Zion, dead horse point are BETTER GO places
Canyon Land, Glen Canyon, Capitol Reef are OPTION places
Las Vegas ->Zion ->Great Basin ->Arches ->Dead horse point ->Canyonland ->Glen Canyon->Capitol Reef->Bryce Canyon->Grand Canyon ->Las Vegas (2498KM)
Option 1: (go to Grand Canyon last)
Las Vegas ->Zion ->Great Basin ->Arches ->Glen Canyon->Capitol Reef->Bryce Canyon->Grand Canyon ->Las Vegas (2190KM)
Option 2:(go to Grand Canyon first)
Las Vegas ->Grand Canyon ->Zion ......... Bryce Canyon ->Las Vegas (2342KM).
Option 3: (Remove Great Basin)
Las Vegas ->Zion ->Arches.....Grand Canyon ->Las Vegs (1933KM)
Option 4: (Remove Glen Canyon and Capito Reff)
Las Vegas->Zion ->Arches->Bryce Canyon ->Grand Canyon ->Las Vegas(1839KM)
Grand Canyon, Arches,Bryce are the MUST GO places
Great Basin, Zion, dead horse point are BETTER GO places
Canyon Land, Glen Canyon, Capitol Reef are OPTION places