Value of S8 = https://act.alz.org/site/TR/Walk2019/CA-NorthernCaliforniaandNorthernNevada/TR/Walk2024/CA-NorthernCaliforniaandNorthernNevada?fr_id=17475&pg=informational&type=fr_informational
Value of S6 = https://act.alz.org/site/TR
Value of S4 = 26
no