Earl Semingsen received his thirty year pin from the National Park Service. He is presently superintendent of Dinosaur National Monument
Black and white photograph taken by Fred Pack during a visit to the quarry at Dinosaur National Monu...
Men standing outside at Dinosaur National Monument are left to right: Earl M. Semingsen, Superintend...
The featured speaker at the Dinosaur National Monument was Roger C. Ernst, Assistant Secretary of th...
Earl M. Semingren, superintendent of Dinosaur National Monument, reads letter congratulating him on ...
Ken Aycock, Allen Scriven, Dr. Paul Stringham, Noel Weeks, Grant Southam, Earl M. Semingsen, Superin...
Governor Clyde cuts the ribbon that officially opens the new visitor center in Dinosaur National Mon...
Graham Liles, superintendent of maintenance at Dinosaur National Monument, received recognition for ...
Color photograph of a National Park Service employee with a dinosaur skull at Dinosaur National Monu...
Govenor George Dewey Clyde cutting a ribbon to offically open the new visitors center at Dinosaur Na...
Oscar Dick and Earl M. Semingsen, Superintendent of the Dinosaur Quarry; looking over a souvenir cop...
Dr. Theodore White, vertebrate paleontologist at Dinosaur National Monument, completed twenty years ...
Dinosaur Quarry Visitor Center, Dinosaur Dinosaur National Monument. Photo by: Dwight L. Hamilton. 1...
James E. Jones, chief ranger at Dinosaur National Monument, was honored for his 20 years of work wit...
A man stands by the fossil tables at Dinosaur National Monument. Dr. Albert C. Boyle was the superin...
Graham Liles, Allen Scrien, unidentified, Earl M. Semingsen, superintendent, and Harvey Madsen at Di...
Black and white photograph taken by Fred Pack during a visit to the quarry at Dinosaur National Monu...
Men standing outside at Dinosaur National Monument are left to right: Earl M. Semingsen, Superintend...
The featured speaker at the Dinosaur National Monument was Roger C. Ernst, Assistant Secretary of th...
Earl M. Semingren, superintendent of Dinosaur National Monument, reads letter congratulating him on ...
Ken Aycock, Allen Scriven, Dr. Paul Stringham, Noel Weeks, Grant Southam, Earl M. Semingsen, Superin...
Governor Clyde cuts the ribbon that officially opens the new visitor center in Dinosaur National Mon...
Graham Liles, superintendent of maintenance at Dinosaur National Monument, received recognition for ...
Color photograph of a National Park Service employee with a dinosaur skull at Dinosaur National Monu...
Govenor George Dewey Clyde cutting a ribbon to offically open the new visitors center at Dinosaur Na...
Oscar Dick and Earl M. Semingsen, Superintendent of the Dinosaur Quarry; looking over a souvenir cop...
Dr. Theodore White, vertebrate paleontologist at Dinosaur National Monument, completed twenty years ...
Dinosaur Quarry Visitor Center, Dinosaur Dinosaur National Monument. Photo by: Dwight L. Hamilton. 1...
James E. Jones, chief ranger at Dinosaur National Monument, was honored for his 20 years of work wit...
A man stands by the fossil tables at Dinosaur National Monument. Dr. Albert C. Boyle was the superin...
Graham Liles, Allen Scrien, unidentified, Earl M. Semingsen, superintendent, and Harvey Madsen at Di...
Black and white photograph taken by Fred Pack during a visit to the quarry at Dinosaur National Monu...
Men standing outside at Dinosaur National Monument are left to right: Earl M. Semingsen, Superintend...
The featured speaker at the Dinosaur National Monument was Roger C. Ernst, Assistant Secretary of th...