Photographer Lane Barden has announced that the Getty Research Institute acquired his series of 130 images called the Linear City Porfolio. The three segments consist of low-altitude oblique aerial photographs of three major visual features of the LA landscape: the Los Angeles River, the Alameda Corridor railroad trench and Wilshire Boulevard. The photo series follows each segment shot sequentially from beginning to end. I saw Barden's river pictures in a timelapse video recently at the Getty and was blown away by the vantage point and seeing how much the river channel changes shape, depth and character from the beginning at Canoga Park High School (above) and the end in San Pedro Bay.
You can get the idea in a gallery on Barden's website.
Photo of the Los Angeles River's starting point in Canoga Park, by Lane Barden.