U T A H
Zion National Park, pages from National Geographic Magazine. Awesome places.

http://scenicutah.com/timpanogos/timpanogoscave.php Scenic Utah. This lists all the places of interest in Utah, the parks, canyons, islands, salt flats, National Parks, Timpanogos Cave National Monument. Find links to Arches National Park, Bryce Canyon, Canyonlands National Park & Deadhorse Point. To Capitol Reef National Park and Zion National Park, Antelope Island State Park, Deadhorse Point State Park and Mirror Lake and the Scenic Byways. Look for Grand Staircase - Grosvenor Arch in Escalante National Monument and the Little Cottonwood Canyon.

Timpanogos Caves National Monument, National Park Service Make sure you look for the Cave/Karst systems. It is in one of the steepest mountain ranges on earth.

Utah Caves Home Page  Caves: Beware, Big Brush, Barn Door, Boomerang, Jim Peck Ice, Kaler Pit, Little Brush, Polygamy's End Cave, Xanavoo Cave  (Idaho)

Danger Cave Provides Clues to Ancient Utah Dwellers. Most interesting article.

Gated Caves of Utah Mostly for the protection of the bat populations.

Neffs Cave, but it is closed. Read and see why. It is America's Deepest Cave.

Access Requirements & Access Request Forms for Silta Owned Caves: Nutty Putty Cave, Blow Hole Cave, Silly Putty Cave and Rabbit Trap Cave.

Utah Treasures, Many caves, canyons, springs, streams, mines and more.

The Wind Caves of Logan, Utah. This is a report of a visit. There are few photos and no history or description, no inside photos.

Porcupine Cave an all text description.

Explore Utah (and Nevada) a long list of points of interest.
Rivers, the Wikipedia Page and Jordan River (no photo, just history) and The Wikimedia Commons page has lots of info and beautiful photos. Lakes: The Wikipedia Page The Wikimedia Commons has even more Lakes. And Bear Lake (Utah-Idaho) the Wikipedia page.
This is the GO-UTAH website created for tourist fishing, skiing, sightseeing but they do have a nice page with a map and listing of those mountains, lakes and rivers. And they have photos.
Great Salt Lake, Utah This page has all you could want to know. USGS. 
VisitUSA website has a fine collections of Utah Photos. Lakes, State Parks, National Parks, Cities and more.
Natural Bridges National Monument, This is the American Southwest website and also has links to other NPS pages. The links are on the left side for the NPS Units but also browse the Other Places. The Dead Horse Point is a sad tale but don't miss Monument Valley and Grand Staircase. Look on the right side for the 20 Views of the Natural Bridges National Monument. Absolutely incredible.
More Natural Arches and Bridges, Mesa Arch and Wild Horse Window. Images by Richard Barron. I spent hours looking through just a fraction of the photos. They are most incredible. My computer had a bit of trouble with the great number of pictures but if you'll take your cursor and put the arrow over the little red X on the one that won't open, right click and then click on Show Photo, you will see it open for you.