Patent ID: 8843855

Claim:
A method comprising: storing: a first plurality of measurements for events of a first event type on a piece of land, wherein each of the events of the first event type is associated with a date of a first plurality of dates; and a second plurality of measurements for events of a second event type on the piece of land, wherein each of the events of the second event type is associated with a date of a second plurality of dates; receiving location information; causing a first map to be displayed, the first map comprising: a marked position that corresponds to the location information; and for a first event of the first event type, a first graphical representation of a first measurement of the first plurality of measurements, wherein the first event is associated with a first date of the first plurality of dates; receiving a single instance of user input of a first directionally oriented input type or a second directionally oriented input type; wherein the single instance of user input is determined to be of the first directionally oriented input type or of the second directionally oriented input type based on a directional orientation of the single instance of user input, and the first directionally oriented input type and the second directionally oriented input type are different directions; if the single instance of user input is of the first directionally oriented input type, in response to the single instance of user input, causing a second map to be displayed, the second map comprising: the marked position; for a second event of the first event type, a second graphical representation of a second measurement of the first plurality of measurements, wherein the second event is associated with a second date of the first plurality of dates; the second date associated with the second event and the first date associated with the first event are different dates; if the single instance of user input is of the second directionally oriented input type, in response to the single instance of user input, causing a third map to be displayed, the third map comprising: the marked position; and for a third event of the second event type, a third graphical representation of a third measurement of the second plurality of measurements, wherein the third event is associated with a third date of the second plurality of dates; wherein the method is performed by one or more computing devices; wherein at least the second date is chronologically adjacent to the first date in the first plurality of dates, and wherein the at least the second map is loaded into memory prior to receiving the single instance of user input; wherein the first plurality of dates and the second plurality of dates are ordered in a list of dates, wherein at least the third date is chronologically adjacent to the first date in the list of dates, and wherein the at least the third map is loaded into memory prior to receiving the single instance of user input.