Blake Gumprecht:
Zanja system of Los Angeles, 1880
Blake Gumprecht:
Changing courses of the Los Angeles River
Blake Gumprecht:
Areas subject to inundation, 1992, Los Angeles River drainage area
Blake Gumprecht:
Inundated areas, flood of 1914, Los Angeles River drainage area
Blake Gumprecht:
Los Angeles River drainage area as it once was
Blake Gumprecht:
Inundated area, flood of 1938, Los Angeles River drainage are
Blake Gumprecht:
Flood control features, Los Angeles River drainage area
Blake Gumprecht:
Indian villages near Los Angeles River
Blake Gumprecht:
Areas subject to inundation before flood control, Los Angeles River drainage area
Blake Gumprecht:
Agricultural lands of Los Angeles, 1849