D&C 48

I think this revelation of the Lord provides some interesting incite in the ways of the Lord as the Prophet seemed concerned about "what to do" in regards to the new gathering of the saints in the Kirtlan area as well as many more that were on their way. The seems to suggest that the area was to be a temporary gathering place as the Lord says -

"IT is necessary that ye should remain for the present time in your places of abode..." (Doctrine and Covenants Section 48:1)

"...and inasmuch as ye have not lands, let them buy for the present time in those regions round about, as seemeth them good, for it must needs be necessary that they have places to live for the present time." (Doctrine and Covenants Section 48:3)

The Lord then reveals that there is another place to gather as he commands -

"It must needs be necessary that ye save all the money that ye can, and that ye obtain all that ye can in righteousness, that in time ye may be enabled to purchase land for an inheritance, even the city.
5 The place is not yet to be revealed..." (Doctrine and Covenants Section 48:4 - 5)

As the Lord suggests that there is to be another place to gather, He also expresses how the place will be revealed -

"...there are to be certain men appointed, and to them it shall be given to know the place, or to them it shall be revealed." (Doctrine and Covenants Section 48:5)

It seems the Lord will appoint or call of committee of priesthood holders to come to a unity of revelation on the appointed place or what is to be known as Zion.

It is in Zion that -

"...they shall be appointed to purchase the lands, and to make a commencement to lay the foundation of the city; and then shall ye begin to be gathered with your families, every man according to his family, according to his circumstances, and as is appointed to him by the presidency and the bishop of the church, according to the laws and commandments which ye have received, and which ye shall hereafter receive." (Doctrine and Covenants Section 48:6)

Another special note - It is in this revelation that the Lord first suggests or talks of a presidency.