Colorado's largest county, Denver County, will begin issuing marriage licenses to gay and lesbian couples.

“FINALLY! We can issue #marriage licenses to ALL loving couples here in #CO,” Denver County Clerk Debra Johnson tweeted Thursday. “Our office will be issuing licenses till 4:30pm today #equality.”

Johnson decided to move forward after a Colorado judge ruled that Boulder County Clerk Hillary Hall can continue issuing marriage licenses to gay couples, though District Court Judge Andrew Harman said the validity of the licenses remains in question.

(Related: Colorado judge allows Boulder clerk to keep issuing marriage licenses to gay couples.)

Denver Mayor Michael Hancock told The Denver Post that he backed Johnson's decision.

“I fully support Clerk and Recorder Debra Johnson in her issuing of marriage licenses to gay and lesbian couples who simply want the freedom to be united with the ones they love,” Hancock said. “I stand proudly with her as we take another step toward marriage equality for every single resident of this great city.”

UPDATE: At 2:35 PM local time, Johnson tweeted a photo (above) of a couple along with the caption, “History in the making.”