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River research Stock Photos

100,000 River research pictures are available under a royalty-free license

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Student taking sample of water

Student taking sample of water — Stock Photo, Image

Biologist with students testing river water

Biologist with students testing river water — Stock Photo, Image

Fisherman on river

Fisherman on river — Stock Photo, Image

Aerial picture of rocky river flows in Chile

Aerial picture of rocky river flows in Chile — Stock Photo, Image

Transparent water surface with copy space for background and texture. Transparent water texture with view of stones under water.

Transparent Water Surface Copy Space Background Texture Transparent Water Texture — Stock Photo, Image

Mountain creek with stones near green grass in sunny day. Clean water stream in fast brook in sunlight. Amazing natural texture.

Mountain Creek Stones Green Grass Sunny Day Clean Water Stream — Stock Photo, Image

Fisherman catches a trout on a mountain river

Fisherman catches a trout on a mountain river — Stock Photo, Image

Autumn landscape on a sunny day

Autumn landscape on a sunny day — Stock Photo, Image

Hobby is the Great way to Go. Successful fly fishing. summer weekend. fisherman show fishing technique use rod. sport activity hobby. experienced fisher in water. man catching fish. man fly fishing

Hobby is the Great way to Go. Successful fly fishing. summer weekend. fisherman show fishing technique use rod. sport activity hobby. experienced fisher in water. man catching fish. man fly fishing — Stock Photo, Image

View from lake banks under an overcast sky

View Lake Banks Overcast Sky — Stock Photo, Image

Fly fisherman in river in autumn

Fly Fisherman River Autumn — Stock Photo, Image

Mature man fishing on the pond. Happy fly fishing. Angler catching the fish. Master baiter. Catching and fishing. Rural getaway. Giving your hobby.

Mature man fishing on the pond. Happy fly fishing. Angler catching the fish. Master baiter. Catching and fishing. Rural getaway. Giving your hobby. — Stock Photo, Image

Fisherman with fishing rod

Fisherman Fishing Rod — Stock Photo, Image

Fishing on the mountain river. Trout fishing. Fisherman fishing

Fishing on the mountain river. Trout fishing. Fisherman fishing — Stock Photo, Image

A beautiful shot of a flowing river with big rocks and trees

Beautiful Shot Flowing River Big Rocks Trees — Stock Photo, Image

Park close to Adige river in Verona countryside

Park Close Adige River Verona Countryside — Stock Photo, Image

Fly Fishing — Stock Photo, Image

Fishing in river.A fisherman with a fishing rod on the river ban

Fishing in river.A fisherman with a fishing rod on the river ban — Stock Photo, Image

Fishing on the mountain river. Trout fishing. Fisherman fishing

Fishing on the mountain river. Trout fishing. Fisherman fishing — Stock Photo, Image

A vertical shot of a river in the forest surrounded by nature

Vertical Shot River Forest Surrounded Nature — Stock Photo, Image

Half underwater- half overwater photograph of a clean river. The River Wertach in Bavaria

Half Underwater Half Overwater Photograph Clean River River Wertach Bavaria — Stock Photo, Image

Spring water — Stock Photo, Image

Texture of water ripples on the surface of the river

Texture Water Ripples Surface River — Stock Photo, Image

Flowing streaming water caugth in the moment

Flowing Streaming Water Caugth Moment — Stock Photo, Image

The river in the forest

River Forest — Stock Photo, Image

Fishing in lake nature recreation background

Fishing Lake Nature Recreation Background — Stock Photo, Image

North Vancouver, British-Columbia - Canada - 09-23-2018: A Fly Fisherman casts his line for a fish on the Capilano River, hoping for a steelhead, salmon or trout

North Vancouver British Columbia Canada 2018 Fly Fisherman Casts His — Stock Photo, Image

River View — Stock Photo, Image

Flyfisherman fishing in river

Flyfisherman fishing in river — Stock Photo, Image

The mountain river.

The mountain river. — Stock Photo, Image

Trout fishing in a mountain river

Trout fishing in a mountain river — Stock Photo, Image

Fishing on the spinning.

Fishing on the spinning. — Stock Photo, Image

. Fishing on the spinning.

. Fishing on the spinning. — Stock Photo, Image

Fly fishing on the river

Fly fishing on the river — Stock Photo, Image

Boy climbing on rock with fishing rod

Boy climbing on rock with fishing rod — Stock Photo, Image

Fisherman catches a trout on a mountain river

Fisherman catches a trout on a mountain river — Stock Photo, Image

Fly fishing — Stock Photo, Image

Beautiful nature of mountains and rivers

Beautiful Nature Mountains Rivers — Stock Photo, Image

A bed of pebbles is exposed in a shallow stream. A tree with luminescent leaves overhangs the water.

Bed Pebbles Exposed Shallow Stream Tree Luminescent Leaves Overhangs Water — Stock Photo, Image

Mountain river — Stock Photo, Image

Mountain river — Stock Photo, Image

Fishing on mountain river

Fishing on mountain river — Stock Photo, Image

Protected landscape of the small river Kamacnik in Gorski kotar - Vrbovsko, Croatia (Zasticeni krajolik rjecice Kamacnik u Gorskom kotaru - Vrbovsko, Hrvatska)

Protected Landscape Small River Kamacnik Gorski Kotar Vrbovsko Croatia Zasticeni — Stock Photo, Image

Fly fishing in Fairy Creek

Fly fishing in Fairy Creek — Stock Photo, Image

Beautiful nature of mountains and rivers

Beautiful Nature Mountains Rivers — Stock Photo, Image

Fly fisherman, Montana. Nature

Fly Fisherman Montana Nature — Stock Photo, Image

Fisherman fishes on a spinning winter. Young fisherman catches in the winter time, sport fishing, healthy lifestyle, leisure, nature.

Fisherman fishes on a spinning winter. Young fisherman catches in the winter time, sport fishing, healthy lifestyle, leisure, nature. — Stock Photo, Image

The reflect on water in the canal

Reflect Water Canal — Stock Photo, Image

The landscape on the Chobe River at the beginning of the rainy season west of Kasane, Botswana

Landscape Chobe River Beginning Rainy Season West Kasane Botswana — Stock Photo, Image

Fisherman releasing trout back into river

Fisherman releasing trout back into river — Stock Photo, Image

Gorgeous scenery on the mountain river. Summer vacation and holi

Gorgeous scenery on the mountain river. Summer vacation and holi — Stock Photo, Image

Water wave surface

Water wave surface — Stock Photo, Image

Nature — Stock Photo, Image

Water surface — Stock Photo, Image

A scenic view of a island with birds perched on the tree in ranganathittu bird sanctuary in Karnataka, India

Scenic View Island Birds Perched Tree Ranganathittu Bird Sanctuary Karnataka — Stock Photo, Image

Deep Forest River kaeng lam duan in Ubon Ratchathani, Thailand

Deep Forest River kaeng lam duan in Ubon Ratchathani, Thailand — Stock Photo, Image

Trout fishing on the river

Trout fishing on the river — Stock Photo, Image

Netherlands,North Holland,Markermeer,august 2018,Waves of the Markermeer

Netherlands North Holland Markermeer August 2018 Waves Markermeer — Stock Photo, Image

Elderly Japanese Angler

Elderly Japanese Angler — Stock Photo, Image

Boat in the sea

Boat Sea — Stock Photo, Image

Mezinsky National Nature Park, Ukraine

Mezinsky National Nature Park Ukraine — Stock Photo, Image

Fishing in kumpeh river, Jambi

Fishing Kumpeh River Jambi — Stock Photo, Image

The mesh patterned blue net fence

Mesh Patterned Blue Net Fence — Stock Photo, Image

Source of the mountain river in the forest

Source Mountain River Forest — Stock Photo, Image

Fishing in the mountain river in summer

Fishing in the mountain river in summer — Stock Photo, Image

Trout fishing on the lake, recreation

Trout Fishing Lake Recreation — Stock Photo, Image

Fisherman on a beautiful mountain river in the forest

Fisherman on a beautiful mountain river in the forest — Stock Photo, Image

Close Up Fisherman At The Nischiki River At Iwakuni 4-9-2015

Close Fisherman Nischiki River Iwakuni 2015 — Stock Photo, Image

Fly fishing. Fisherman in waders fishing on the rapid river

Fly Fishing Fisherman Waders Fishing Rapid River — Stock Photo, Image

Mountain river with rocks and sandstones - retro, vintage

Mountain river with rocks and sandstones - retro, vintage — Stock Photo, Image

Beautiful fast river in the forest

Beautiful Fast River Forest — Stock Photo, Image

Beautiful nature of mountains and rivers

Beautiful Nature Mountains Rivers — Stock Photo, Image

Fly fishing scene, freshwater fishing

Fly Fishing Scene Freshwater Fishing — Stock Photo, Image

Lake in the forest with fallen trees in the water

Lake Forest Fallen Trees Water — Stock Photo, Image

Fishing on the mountain river. Trout fishing. Fisherman fishing

Fishing on the mountain river. Trout fishing. Fisherman fishing — Stock Photo, Image

"Autumn morning, a walk along the bed of a mountain river.

Autumn Morning Walk Bed Mountain River — Stock Photo, Image

Fishing on the mountain river. Fisherman on the shore. Summer Ac

Fishing on the mountain river. Fisherman on the shore. Summer Ac — Stock Photo, Image

Fishing on the mountain river. Trout fishing. Fisherman fishing

Fishing on the mountain river. Trout fishing. Fisherman fishing — Stock Photo, Image

Fly fisherman using flyfishing rod.

Fly fisherman using flyfishing rod. — Stock Photo, Image

River Psel in summer

River Psel Summer — Stock Photo, Image

Cherek — Stock Photo, Image

Fishing in the lake

Fishing in the lake — Stock Photo, Image

Fast running water under strong pressure.

Fast running water under strong pressure. — Stock Photo, Image

Isolated white flower pot on white background

Isolated White Flower Pot White Background — Stock Photo, Image

Pond — Stock Photo, Image

Woman fishing in the river in spring

Woman fishing in the river in spring — Stock Photo, Image

Gold prospecting in the Ticino River

Gold prospecting in the Ticino River — Stock Photo, Image

Children crossing a river

Children crossing a river — Stock Photo, Image

Beautiful nature of mountains and rivers

Beautiful Nature Mountains Rivers — Stock Photo, Image

Realistic flower field and river. 3d rendering of isolated objects.

Realistic Flower Field River Rendering Isolated Objects — Stock Photo, Image

Fishing, country rest. Background on the theme of recreation

Fishing Country Rest Background Theme Recreation — Stock Photo, Image

Trout fishing on the river

Trout fishing on the river — Stock Photo, Image

Metolius River Oregon Fly Fishing Trip with Fisherman Casting

Metolius River Oregon Fly Fishing Trip with Fisherman Casting — Stock Photo, Image

Fishing, country rest. Background on the theme of recreation

Fishing Country Rest Background Theme Recreation — Stock Photo, Image

Father and son fishing

Father and son fishing — Stock Photo, Image

A vertical shot of the green trees, river, and woodland scenery with pebbles in the foreground

Vertical Shot Green Trees River Woodland Scenery Pebbles Foreground — Stock Photo, Image

Fishing in the mountain river in summer

Fishing in the mountain river in summer — Stock Photo, Image

Abstract background with space for text

Abstract Background Space Text — Stock Photo, Image

A sign on a dirt road

A sign on a dirt road — Stock Photo, Image

Young man fishing. Fishing on the mountain river. Trout fishing.

Young man fishing. Fishing on the mountain river. Trout fishing. — Stock Photo, Image

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