2023 Map of Hillsboro

Upland from the valley floor, the terrain rises into the Tualatin Mountains and Pumpkin Ridge, where smaller settlements like Helvetia and West Union maintain a more rural character. Genealogists will find significant value in the mapped locations of Old Scotch Cem and Helvetia Cem, while the course of the Oregon Electric RR serves as a reminder of the interurban rail network that once defined local transport. Numerous small reservoirs, such as Bastion Reservoir and Hembree Reservoir, dot the foothills, reflecting the region's managed water systems.