Image Use: Personal/Non Profit, website: $9.95, Full Res: $29.95. Unlimited commercial website: $49.95. Full Res: 199.95. Questions? Contact [email protected] Although many hundreds of thousands of people live here, there is an extensive network of regional parks and open space areas which make for excellent hiking and landscape photography opportunities. Mt Diablo, rises nearly 4,000 feet above the surrounding area and provides excellent views as well as being an iconic subject all its own.