Historic Old Colma Road
Historic Old Colma Road is a 4.7 mile moderately trafficked out and back trail located near Montara, California that offers scenic views and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.
- dogs on leash
- kid friendly
- mountain biking
- bird watching
- historic site
Officially named “Half Moon Bay- Colma Road” this was the original road built by San Mateo County over San Pedro Mountain in 1879.
Designed for Horse Wagon and Bicycle traffic it became impracticable with the rise of the automobiles and was replaced in 1915 by the nearby “Coastside Blvd”, which survives now as Old San Pedro Mountain Road Trail.
It in turn was replaced by what is now Hwy 1 in 1937 and later added the Devils Slide Tunnel.
This southern section of the trail climbs to the top of San Pedro Mtn and passes through property owned by the State Parks system and CalTrans.
At one point there is a steep short section over a reroute for fill from tunnel construction.
Old Colma Road also was the source of the very popular and nearby Grey Whale Trail to the south.
The northern decent of Old Colma down to Devils Slide trail falls almost entirely on private property and is fenced at the northern end.
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