
John Muir - Scot & Father of US National Parks & Sierra Club. Conservationist, scribbler, walker. Born in Dunbar, Scotland. #JohnMuirDay is 21st April.
John Muir Way John Muir Trail
Joined January 2009
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#JohnMuirDay today! ... April 21 🌎
Who was John Muir?
Father of America's National Parks.
Founder of The Sierra Club.
Conservationist, long time walker 😉 and scribbler 😁📚
#JohnMuirWay & #JohnMuirTrail,@JohnMuirTrust @JM_Birthplace
@JohnMuirLegacy
@NatlParkService
John Muir retweeted
Reading My First Summer in the Sierra by John Muir in a brilliant hardback edition from @SeaWolfPress @JohnMuirLegacy
John Muir retweeted
Replying to @shaunvlog_
By the way, much respect to John Muir. He came from Scotland and is the father of our National Parks in the USA. Much of what we love about nature in Colorado is preserved thanks to his thoughtfulness and effort.
John Muir retweeted
Action demanded as John Muir Trust nears 'point of no return' trib.al/lAGccVZ
John Muir retweeted
Fantastic trees doing a good job here 😊#TreeClub🌳
John Muir retweeted
This only happens a certain time of year in Yosemite, incredible.
Readers added context they thought people might want to know
While a real "firefall" illuminates Yosemite's Horsetail Fall orange in mid-February under clear conditions, many viral videos depict impossible gradual top-down lighting and are AI-generated or edited. bbc.com/news/videos/c4… threads.com/@tim_slane/pos…
John Muir retweeted
He lisg hus wife first and then his mother within 24 hrs. The man was in grief. He saught the ruggedness of the west. Then this happened
youtube.com/shorts/zF5PVYQEz…
John Muir retweeted
#OTD in 1903, after roughly fourteen thousand miles, two dozen states and territories, and more than nine weeks of speeches delivered from the back of a presidential train, Theodore Roosevelt came home.
The Western Tour had taken him from Washington west to Yellowstone, from Yellowstone to the Grand Canyon, from the Grand Canyon to Yosemite, and back across the southern half of the country. He had ridden through the Mariposa Grove with John Muir and slept under the giant sequoias. He had stood on the South Rim of the Grand Canyon and asked Americans to leave it as it was. He had spoken in the Salt Lake Tabernacle about water and reservoirs and forests. He had spoken to thousands more in towns most presidents had never visited.
By the time he climbed off the train in Washington, more Americans had seen a sitting president in person than at almost any earlier point in the country's history.
What he carried back was a sharpened conservation conviction — formed partly under the trees with Muir, partly looking across the canyons, partly hearing Westerners describe what was at stake when public lands went unprotected. Within three years he would sign the Antiquities Act. Within seven, he would have protected more than 230 million acres.
It started with a train.
#OTD #OnThisDay #TheodoreRoosevelt #Conservation #PublicLands #DareGreatly
John Muir retweeted
Earlier today we made a lunch break visit to the John Muir National Historic Site. This was the former home and private orchard of conservationist John Muir. – at Martinez, CA
John Muir retweeted
Nice walking along the Balgreen,
Carricknowe section of @JohnMuirWay #Edinburgh
yesterday morning just after 7 and
watch the animals start their day.
@Edin_the_walk #cats #rabbits
#nature @JohnMuirLegacy
John Muir retweeted
158 years ago today — May 9, 1868 — John Muir got his first breathtaking look at Yosemite Valley.
The 30-year-old former machinist had been temporarily blinded in an industrial accident.
When his vision returned, he "quit society" and spent his life working odd jobs and walking across America to see all its natural wonders. (He had been working as a shepherd in the Sierra Nevada when he first entered the valley.)
He was instantly awestruck.
That single visit changed his life ... and eventually helped change America. Muir’s passionate writings about Yosemite’s beauty and his tireless advocacy played a major role in the creation of our National Park System.
John Muir retweeted
Did you know the Yellowstone Research Library collection consists of more than 20,000 books, periodicals, theses and dissertations, unpublished manuscripts, microforms of historic newspapers and scrapbooks, brochures, technical reports, and audio visual materials?
National Library Week (April 19-23) is an annual celebration hosted by the American Library Association highlighting the integral role libraries play in our communities. This is a time to reflect on the impact libraries have had on your life, thank your librarians, get a library card, and read lots of books!
#NationalLibraryWeek2026











































