This western is actually set in the 1850's, about the time of the Pony Express (which it portrays), so there is no simplification of period sets through the use of a contemporary west, with motor vehicles, telephones, and such conveniences. The settings, usually in and around haciendas, appear to be authentic. However, this film goes WAY beyond a singing cowboy or two. There are at least a half dozen musical numbers, some involving choreography, and they consume quite a lot of time. These literal show-stoppers are not bad in themselves, but they dissipate any suspense or interest in the plot.
As for the plot, I am not sure why the registration of land grants was so sensitive that immediate delivery to Washington was necessary, after local registration, on a grant-by-grant basis rather than a copy of the registration record. And regular mail would have been sufficient. Any land disputes would have been settled in California's federal courts and not in Washington. The film has the usual action, but be prepared for a lot of singing.
As for the plot, I am not sure why the registration of land grants was so sensitive that immediate delivery to Washington was necessary, after local registration, on a grant-by-grant basis rather than a copy of the registration record. And regular mail would have been sufficient. Any land disputes would have been settled in California's federal courts and not in Washington. The film has the usual action, but be prepared for a lot of singing.