FRESNO, Calif. — Just in time for spring snowmelt: a webcam pointed at one of Yosemite National Park’s main attractions, the soaring 2,425-foot Yosemite Falls.

The HD camera went live on North America’s tallest fall Monday, allowing anyone with computer access to watch in stunning detail as shadows race across the towering granite monolith over which Yosemite Creek crashes in a series of plunges and cascades. It’s updated every 30 seconds through a high-speed DSL connection.

It joins a smattering of others across the nation, including one at Yellowstone’s renowned geyser Old Faithful.

One of the most popular webcams in a national park, said NPS spokeswoman Kathy Kupper, has been one showing sled dog puppies at Denali National Park and Preserve in Alaska (http://1.usa.gov/nVhmKQ). While the NPS doesn’t have an exhaustive list of cameras in parks, the ones it knows about are on the park website at nps.gov (http://1.usa.gov/KmVFQb).

The new webcam can be found at http://www.nps.gov/yose/photosmultimedia/webcams.htm