Classic Portola Loop CRB004, 32.6 miles, 1390 feet of climbing Start Chain Reaction [Homestead east of Foothill Expressway, Los Altos] Total Turn Road Name 0.0 F Chain Reaction .1 L Homestead R Foothill 1.6 X Miramonte/Loyola [R to Bicycle Outfitters] C Foothill 2.2 X Magdalena [R to McKenzie Park] C Foothill 5.9 X Arastradero [R to Gunn High School] C Foothill 7.2 X Page Mill S Junipero Serra 9.6 L Alpine 11.5 X La Mesa [possible snack/bathroom stop (Ladera Shopping Center)] C Alpine 12.9 X Arastradero [Alpine Inn] C Alpine 14.1 R Portola 17.5 X Portola S Sand Hill 18.1 X Manzanita C Sand Hill 18.2 X Whiskey Hill C Sand Hill 21.0 L Sharon Park 21.2 R Monte Rosa 21.7 R Avy 22.1 L Alameda de las Pulgas 22.17 U Gordon 22.2 X Plantation Deli [possible lunch/bathroom stop] C Alameda de las Pulgas 22.6 X Campo Bello S Santa Cruz 22.9 X Sand Hill C Santa Cruz 23.1 L Junipero Sera at Alpine 25.4 X Page Mill S Foothill 26.7 X Arastradero [L to Gunn High School] C Foothill 30.4 X Magdalena [L to McKenzie Park (possible bathroom stop)] C Foothill 31.0 X Miramonte/Loyola [L to Bicycle Outfitters] C Foothill 32.4 L Homestead 32.6 F Chain Reaction F=Start/Finish; R=Right; L=Left; X=Cross; S=Straight; C=Continue; U=U-Turn This route contributed by Aaron Katz; originated by Bill Reisinger.