Navigate to Sidney using USGIS Map Tool
Zoom in on the city block you are constructing. Keep the center of the block you are interested in to the left side of the page.
Pictured is the Sidney Public Library
Select the SPOT ELEVATION Tool in the tool bar and ACTIVATE
Determine elevation and elevation change for the city block
In the case of the Sidney Public Library, there is only 1 foot difference across the city block. Therefore, In Minecraft the city block will be kept at one level.
In Minecraft:
Use math and your best judgement to determine an elevation change in Minecraft