Frequently Asked Questions (FAQ)

Good morning,
I'm a Politecnico of Milan Student. I'm developing a thesis about the erosion process termed dry ravel. I need information about fire and debris basin data in San Gabriel Mountains watersheds, in particular regarding Lower Brown Canyon and Falls Canyon.
May you post me all information you have about these arguments?
Thank you,
Pietro Agosti

For debris basin data in the San Gabriel Mountains, please refer to the Hydrologic Report that can be found on the Department of Public Works website (

For fire data, please contact the United States Forest Service, Angeles National Forest office. Their website address is

WRD SWE hydrology sedimentation hydraulic hydrological wells groundwater rainfall conservation depth precipitation alert gauges stormwater engineering