The images in this gallery (
National Parks Large Format) were photographed on large format (5x7 inch) film (
more details on QT Luong's work on the National Park). Their extremely high resolution make them particularly suitable for highest quality fine art prints of large sizes (up to 5 x 7 feet or 150 x 210 cm) and mural reproduction (drum scans of 300MB are immediately available). Although most of QT Luong's large format work is in the US National Parks, see also
large format images from other places.
If that kind of resolution is not needed, for a larger image choice, see the more comprehensive and current National Parks gallery which also includes images photographed in 35mm and digital.