Big Basin - Hwy 236, Hwy 236 Upper, China Grade Upper BCB010, 42.1 miles, 3930 feet of climbing Meet at Boulder Creek, near Post Office GO TOTAL TURN ROAD NAME START AT BOULDER CREEK 0.0 HIGHWAY 236 5.9 5.9 R LODGE RD. 3.6 9.5 S CAMPGROUND RD. 1.2 10.8 R HIGHWAY 236 0.7 11.4 X BIG BASIN PARK 0.0 11.4 L PICNIC AREA RD. 0.3 11.7 S NORTH ESCAPE RD. 2.5 14.2 L HIGHWAY 236 5.9 20.1 X HIGHWAY 9 0.0 20.1 U HIGHWAY 236 4.8 24.9 R UPPER CHINA GRADE RD. 2.3 27.2 X PAVEMENT/DIRT TRANSITION 0.0 27.2 U UPPER CHINA GRADE RD. 2.3 29.6 R HIGHWAY 236 3.4 32.9 X BIG BASIN PARK 0.0 32.9 S HIGHWAY 236 5.1 38.0 X CHINA GRADE RD. 0.0 38.0 S HIGHWAY 236 4.1 42.1 END BOULDER CREEK R=Right, L=Left, X=Cross, U=Uturn, S=straight