Jeff Foott / Indian Rhubarb (Darmera peltata) growing on rock in river, Cascade Creek, Yosemite National Park, California

Jeff Foott / Spring run-off, Cascade Creek, Yosemite National Park, California

Jack Dykinga / Cibecue Creek waterfall pouring through canyon narrows, White Mountain Apache Reservation, Arizona, USA

Colin Monteath / Waterfall below Mount Fitzroy, Los Glaciares National Park, Patagonia, Argentina

Colin Monteath / Waterfall at dawn below Mount Fitzroy, Los Glaciares National Park, Patagonia, Argentina

Chien Lee / Stream flowing through pristine lowland rainforest in Gunung Mulu National Park, Malaysia

Jeff Foott / Spring run-off, Cascade Creek, Yosemite National Park, California

Jeff Foott / Spring run-off, Cascade Creek, Yosemite National Park, California

Jeff Foott / Incense Cedar (Calocedrus decurrens) trees and waterfall, Cascade Creek, Yosemite National Park, California

Jeff Foott / Cascade, Avalanche Creek, Glacier National Park, Montana

Jeff Foott / Cascade, Avalanche Creek, Glacier National Park, Montana

Jeff Foott / Spring run-off, Cascade Creek, Yosemite National Park, California

Chien Lee / Cascading creek, Isalo National Park, Madagascar

Kirkendall-Spring / Upper McCord Creek Falls in Columbia River Gorge National Scenic Area, Oregon, USA. March 2016.

Kirkendall-Spring / Weisendanger Falls on Multnomah Creek, Columbia River Gorge National Scenic Area, Oregon, USA. April 2016.

Sandra Bartocha / Waterfall at Kieler creek on the Limestone coast of the Baltic Sea. Ruegen, Jasmund National Park, Ancient Beech Forest UNESCO Heritage Site, Germany, Europe. December 2015.

Jeff Foott / Waterfall in fall, Mohawk Falls, Kitchen Creek, Ricketts Glen State Park, Pennsylvania

Andy Trowbridge / Waterfall on side creek of the Whirinaki River, Whirinaki Forest Park, Whakatane District, Bay of Plenty Region, New Zealand. November.

James Christensen / Pacific Chorus Frog (Pseudacris regilla) female hiding in creek bed, Eagle Cap Wilderness, Oregon

Tim Fitzharris / Waterfall, Tanyard Creek, Bella Vista,Arkansas

Tim Fitzharris / Cascading creek, Mulberry River, Arkansas

Kirkendall-Spring / South Falls of South Fork Silver Creek, Silver Creek Falls State Park, Oregon, USA. December 2014.

Kirkendall-Spring / South Falls of South Fork Silver Creek, Silver Creek Falls State Park, Oregon, USA. December 2014.

Kirkendall-Spring / Woman looking at view, Cascade Mountains, Liberty Cap, Buck Creek Pass, Glacier Peak Wilderness, Wenatchee National Forest, Washington, USA. September 2014.

Konrad Wothe / Cascading creek in rainforest, Trinidad, West Indies, Caribbean

Charlie Summers / Arctic grayling (Thymallus arcticus) swimming up a waterfall in a North Park, Colorado creek, USA, June.

Floris van Breugel / Metlako Falls along the Eagle Creek Trail in the Columbia River Gorge, Oregon, USA. May 2011.

MYN / Gil Wizen / Giant springtail (Holacanthella brevispinosa) Cascade Creek, Fiordland National Park, South Island, New Zealand, February. Meetyourneighbours.net project.

MYN / Gil Wizen / Giant springtail (Holacanthella brevispinosa) Cascade Creek, Fiordland National Park, South Island, New Zealand, February. Meetyourneighbours.net project.

MYN / Gil Wizen / Giant springtail (subfamily Neanurinae) Cascade Creek, Fiordland National Park, South Island, New Zealand, February. Meetyourneighbours.net project.

MYN / Gil Wizen / Giant springtail (subfamily Neanurinae) Cascade Creek, Fiordland National Park, South Island, New Zealand, February. Meetyourneighbours.net project.

Kirkendall-Spring / Big Creek Falls in the Lewis River Valley, Giford Pinchot National Forest, Washington, USA.

Matthias Breiter / Chorrillo del Salto waterfall below Mount Fitz Roy, Patagonia, Argentina

Chien Lee / Stream cascading through primary forest, Kubah National Park, Borneo, Malaysia

Kevin Schafer / Falls Creek Falls, Gifford Pinchot National Forest, Washington

Tim Fitzharris / Waterfall, Laurel Creek, Great Smoky Mountains National Park, Tennessee

Tim Fitzharris / Porphyry Creek near Silverton, Colorado

Rob Brown / Stream, Mjoifordur, East Iceland, Iceland

Chien Lee / River flowing through canyon, Western Australia, Australia

Kevin Schafer / Small stream in rainforest, Mount Tompotika Forest Reserve, Tompotika Peninsula, central Sulawesi, Indonesia

Pete Oxford / River within the Junin Community Reserve with small cascades, Intag Valley, northwest Ecuador

Matthias Breiter / Upper Cascade Falls, Moran State Park, Orcas Island, Washington

Matthias Breiter / Lower Cascade Falls, Moran State Park, Orcas Island, Washington

Colin Monteath / Waterfall at dawn below Mount Fitzroy, Los Glaciares National Park, Patagonia, Argentina

Colin Monteath / Waterfall below Mount Fitzroy, Los Glaciares National Park, Patagonia, Argentina

Colin Monteath / Stream stained brown by organic matter with overhanging ferns, Oparara Basin Arches, Kahurangi National Park, Karamea, New Zealand

Colin Monteath / Stream stained brown by organic matter with overhanging ferns, Oparara Basin Arches, Kahurangi National Park, Karamea, New Zealand

Chien Lee / Stream cascades over sandstone layers, Lambir Hills National Park, Borneo, Malaysia

Colin Monteath / Moss bed, Cascade Saddle stream flows over edge into Matukituki Valley, Mount Aspiring in distance, Mount Aspiring National Park, New Zealand

Colin Monteath / Cascade Saddle stream flows over edge into Matukituki Valley, Mount Aspiring in distance, Mount Aspiring National Park, New Zealand

Tim Fitzharris / Oak Creek in Slide Rock State Park near Sedona, Arizona

Tim Fitzharris / Oak Creek in Slide Rock State Park near Sedona, Arizona

Kevin Schafer / Rainforest waterfall, Marojejy National Park, Madagascar

Sebastian Kennerknecht / Swiftcurrent Falls and Mount Grinnell at sunrise, Many Glacier, Glacier National Park, Montana

Kevin Schafer / Sunbeam Falls, Mount Rainier National Park, Washington

Konrad Wothe / Creek in Mount Rainier National Park, Washington

Tim Fitzharris / Kitchen Creek cascades, autumn, Ricketts Glen State Park, Pennsylvania

Tim Fitzharris / Laurel Creek cascades, Great Smoky Mountains National Park, Tennessee

Rolf Nussbaumer / Bridge at Cascade Creek, Jenny Lake, Grand Teton National Park, Wyoming, USA

Tim Fitzharris / Cascade and wildflowers at Yankee Boy Basin, Colorado

Tim Fitzharris / Cascade near Grotto Falls, Great Smoky Mountains National Park, Tennessee

Tim Fitzharris / Cascade along Eagle Creek flowing through temperate old growth rainforest, Columbia River Gorge, Oregon

Jeff Foott / Cascading creek, Glacier National Park, Montana

Jeff Foott / Spring run-off, Cascade Creek, Yosemite National Park, California

Jeff Foott / Spring run-off, Cascade Creek, Yosemite National Park, California

Jeff Foott / Spring run-off, Cascade Creek, Yosemite National Park, California

Jeff Foott / Creek during spring snowfall, Cascade Creek, Yosemite National Park, California

Jeff Foott / Creek during spring snowfall, Cascade Creek, Yosemite National Park, California

Jeff Foott / Cascade, Avalanche Creek, Glacier National Park, Montana

Jeff Foott / Spring run-off, Cascade Creek, Yosemite National Park, California

Paul Bertner / Waterfall in rainforest, Valle del Cauca, Colombia

Matthias Breiter / Cascading temperate rainforest creek, Wrangell Island, Alaska

Matthias Breiter / Upper Rainbow Falls, Wrangell, Alaska

Matthias Breiter / Run-off from Romanche Glacier along Beagle Channel, Alberto de Agostini National Park, Chile

Kevin Schafer / Desert waterfall, McCartney Creek, Nature Conservancy Preserve, Moses Coulee, Washington

Tim Fitzharris / Porphyry Creek near Silverton, Colorado

Matthias Breiter / Cascading creek in temperate rainforest interior, Sitka, Alaska

Matthias Breiter / Cascading creek in temperate rainforest interior, Sitka, Alaska

Colin Monteath / Waterfall below Mount Fitzroy, Los Glaciares National Park, Patagonia, Argentina

Colin Monteath / Moss bed, Cascade Saddle stream flows over edge into Matukituki Valley, Mount Aspiring in distance, Mount Aspiring National Park, New Zealand

Jeff Foott / Cascade Creek, Yosemite National Park, California

Jeff Foott / Calf Creek Falls, Grand Staircase-Escalante National Monument, Utah

Jeff Foott / Waterfall, Kitchen Creek, Ricketts Glen State Park, Pennsylvania

Jeff Foott / Small cascade, Kitchen Creek, Ricketts Glen State Park, Pennsylvania

Jeff Foott / Oneida Falls, Kitchen Creek, Ricketts Glen State Park, Pennsylvania

Jeff Foott / Cascade Creek, Yosemite National Park, California

Jeff Foott / Rock in creek, Cascade Creek, Yosemite National Park, California

Jeff Foott / Fern and waterfall, Avalanche Creek, Glacier National Park, Montana

Jeff Foott / Water flowing around rock with plant, Cascade Creek, Yosemite National Park, California

Jeff Foott / Calf Creek Falls, Grand Staircase-Escalante National Monument, Utah

Kirkendall-Spring / Cedar Creek Falls flowing into pool surrounded by woodland vegetation in the foothills of the Cascade Mountains, Washington, USA. May, 2023.

Tim Fitzharris / Cascade, Laurel Creek, Great Smoky Mountains National Park, Tennessee

Doug Gimesy / Martins Creek and surrounds after 2019/20 bushfires devastated the area. Rivers in the south-east of Australia endured drought, bushfires and intense rainfall in a brief period. The rains washed ash a...

Doug Gimesy / Martins Creek and surrounds after 2019/20 bushfires devastated the area. Rivers in the south-east of Australia endured drought, bushfires and intense rainfall in a brief period. The rains washed ash a...

Doug Gimesy / Martins Creek and surrounds after 2019/20 bushfires devastated the area. Rivers in the south-east of Australia endured drought, bushfires and intense rainfall in a brief period. The rains washed ash a...

Doug Gimesy / Martins Creek and surrounds after 2019/20 bushfires devastated the area. Rivers in the south-east of Australia endured drought, bushfires and intense rainfall in a brief period. The rains washed ash a...