Caterpillar CAT 257B Tracked Skid Steer Loader - Multi terrain Loader
Multi terrain loaders are basically skid steer loaders equipped with rubber tracks.
This development project is called Presidio PHSH Adaptive Reuse Housing.
The Public Health Service Hospital (PHSH) is located in the Presidio of San Francisco. It has been rehabilitated into luxury condos housing in 2010, and it is now called "Presidio Landmark Apartments".
For more information about this place you can visit my PHSH page.