"landmark progress" is a correct and usable expression in written English.
You can use it to describe something significant or noteworthy that has been achieved in achieving a particular goal. For example, you could say "the organization has made landmark progress in their research efforts this year."
California has made landmark progress reducing carbon emissions while growing the economy, but the state's work to reduce greenhouse gas emissions is just beginning.
10) While many celebrate landmark progress in American society, take a moment how hard the past week has been for one 1990s baseball star.
By fall, Avedisian and Timothy Wong, of M. & M., believed that landmark progress had been achieved that from a mice situation they were down to a mouse situation.
He wouldn't make landmark progress for women, I predicted, but he'd give the portfolio some muscle in the cabinet room, and given his reputation on gender issues, he'd have something personal at stake in the outcome.
The Attorney General assured that the Department of Justice will not allow states to reverse the landmark progress made with the Voting Rights Act and will take strong and decisive action to thwart efforts to restrict the franchise of voting.
Landmark progress for children of Mongolia: Ratification of OP3 CRC The Parliament has made a major step towards providing justice for children of Mongolia through the ratification of the Third Optional Protocol to the UN Convention on the Rights of the Child (OP3 CRC).
The transfer machine, a landmark in progress toward full automation, moves the workpieces to the next workstation and accurately positions them for the next machine tool.
The sequencing of the genome is a landmark of progress in specifying information, decoding it into its many coded meanings and learning how it goes wrong in disease.
And more landmarks of progress and enlightenment will continue to fall in Pakistan.
A final answer to any of these questions would be a landmark of human progress.
The last year was not a landmark one for progress on sustainability here in the UK.
