Sole and exclusive jurisdiction is assumed by the United States over the territory embraced and included within the Mesa Verde National Park, saving, however, to the State of Colorado the right to serve civil or criminal process within the limits of the aforesaid park in suits or prosecutions for or on account of rights acquired, obligations incurred, or crimes committed outside of said park; and saving further to the said State the right to tax persons and corporations, their franchises and property on the lands included in said tracts: and saving also to the persons residing in said park now or after April 25, 1928