View of cactus and surrounding area "Saguaros, Saguaro National Monument," Arizona. Photographer: Adams, Ansel, 1902-1984.… https://www.rawpixel.com/image/8799940/photo-image-plant-vintage-public-domainFree Image from public domain licenseDetail of cactus "Saguaros, Saguro National Monument," Arizona. Photographer: Adams, Ansel, 1902-1984. Original public… https://www.rawpixel.com/image/8799351/photo-image-plant-vintage-public-domainFree Image from public domain licenseTrout Springs Rx Fire. Wildland fire engine at sunrise. (DOI/Neal Herbert). Original public domain image from Flickr https://www.rawpixel.com/image/4036960/photo-image-light-smoke-sunFree Image from public domain licenseMountain Biking the White Rim Road. Credit: NPS/Andrew Kuhn. Original public domain image from Flickr https://www.rawpixel.com/image/4036953/photo-image-tree-people-natureFree Image from public domain licenseDay Hiking in Covington AreaTwo hikers walk through a wash near Covington Flats. NPS/ Carmen Aurrecoechea https://www.rawpixel.com/image/9648178/photo-image-person-public-domain-natureFree Image from public domain licenseGreat Sand Dunes National Park and Preserve, NPS Photo/M.Reed. Original public domain image from Flickr https://www.rawpixel.com/image/4225017/photo-image-background-public-domain-natureFree Image from public domain licenseBeavertail Cactus Flowers, and fishhook Cactus FruitThree common fishhook cacti (Mammillaria tetrancistra) in the foreground… https://www.rawpixel.com/image/9648152/photo-image-background-rose-flowerFree Image from public domain licenseArches in the high desert. It's vital to stay hydrated, especially when doing any strenuous activities.Credit: NPS/Neal… https://www.rawpixel.com/image/4036983/photo-image-person-nature-mountainFree Image from public domain licenseEarthwatch Volunteers Work with Park Resource Managers to Study Climate Change https://www.rawpixel.com/image/8714686/photo-image-public-domain-wood-womanFree Image from public domain licenseBackpackers walking along the Boy Scout Trail, Joshua Tree National Park, California https://www.rawpixel.com/image/8725990/photo-image-public-domain-person-natureFree Image from public domain licenseFull view of cactus with others surrounding, "Saguaros, Saguaro National Monument," Arizona. Photographer: Adams, Ansel… https://www.rawpixel.com/image/8799730/photo-image-plant-vintage-public-domainFree Image from public domain licenseFebruary 2019 Arizona lupine (Lupinus arizonicus) and desert sunflower (Geraea canescens) wildflowers on the bajada… https://www.rawpixel.com/image/8729657/photo-image-flower-plant-public-domainFree Image from public domain licenseCanyonlands National Park. (NPS photo by Kirsten Kearse). Original public domain image from Flickr https://www.rawpixel.com/image/4036946/photo-image-nature-car-naturalFree Image from public domain licenseGreat Sand Dunes National Park and Preserve. NPS Photo/M.Reed. Original public domain image from Flickr https://www.rawpixel.com/image/4225022/photo-image-background-public-domain-natureFree Image from public domain licenseGreat Sand Dunes National Park and Preserve NPS Photo/M.Reed. Original public domain image from Flickr https://www.rawpixel.com/image/4225009/photo-image-background-public-domain-natureFree Image from public domain licenseRippled patterns shaped by wind play upon the surface of sand at Great Sand Dunes National Park. Photo by Julie West.… https://www.rawpixel.com/image/4225020/photo-image-background-public-domain-natureFree Image from public domain licenseGreat Sand Dunes National Park and Preserve, NPS Photo/M.Reed. Original public domain image from Flickr https://www.rawpixel.com/image/4225016/photo-image-background-public-domain-natureFree Image from public domain licenseGlowing tent in Ryan Campground, Joshua Tree National Park, southern California https://www.rawpixel.com/image/8726013/photo-image-background-night-sky-public-domainFree Image from public domain licenseJoshua tree bloom and mothJoshua Tree yucca moth (Tegeticula synthetica) on a Joshua tree (Yucca brevifolia) bloom. NPS/… https://www.rawpixel.com/image/9647260/photo-image-flower-plant-treeFree Image from public domain licenseWater droplets on bladderpod (Peritoma arborea) blooming in Wilson Canyon, January 2015 https://www.rawpixel.com/image/8730192/photo-image-public-domain-nature-waterFree Image from public domain license