Post Office SART

The 2.5 miles roll continuously through 5 distinct climbs, adding up to 1,026 ft of gain without one dominant ascent. The main climb starts around mile 0.94 and runs 0.36 miles, gaining 338 ft at an average 18%. You finish 777 ft above the start, so the return trip runs mostly downhill.

The Santa Ana River Trail is a multi-use trail complex that runs alongside the Santa Ana River in southern California. The trail stretches 30 miles (48 km) from the Pacific Ocean at Huntington Beach along the Santa Ana River to the Orange–Riverside county line. Planned extensions of the trail reach to Big Bear Lake in San Bernardino County. When completed, it will be the longest multi-use trail in Southern California, at approximately 100 miles (160 km). In 1989, the Los Angeles Times described the path as "a veritable freeway for bicycles".

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At 2.6 miles it is longer than 80% of the 20 trails mapped in Big Bear Lake.

It climbs more per mile than 90% of trails in Big Bear Lake.