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On May 12, 2011, I surveyed parts of the Gonzales Canyon Open Space on my mountain bike, using the official city map as a guide.
I was able to survey only a few trails. I was unable to find some of the trails on the city map; I found others too steep to explore on a bike.
The trail to the east end of the canyon has been extended beyond the part shown on the city map. I identifed several additional access points.
The topographic map is of limited use because most roads in the area were built after the most recent revision.
Transcript of survey.
Data plotted on topo
City trail map
Philip J. Erdelsky