Rapid population growth led to the creation of the Colorado Territory in 1861.

After the war Douglas went west to the Colorado Territory.

After the war he migrated to the Colorado Territory.

He moved to the Colorado Territory in 1873, but later returned to Maryland.

He also worked as a buffalo hunter and scout in the Colorado Territory.

In 1861, the town became part of the Colorado Territory.

Another sesquicentennial - bet you didn't know it's the 150th anniversary of Colorado Territory.

He moved to Colorado Territory in 1875 and resumed the practice of law.

This was the name chosen for Colorado as a Territory in 1861 by Congress.

The boundary was defined as a line running due south from the southwest corner of Colorado Territory, which had been created in 1861.