2021 Map of Greenbush

About this map

The Penobscot River serves as the dominant geographical feature in this survey, carving a complex path through Penobscot County that includes numerous named islands like Sugar Island, White Squaw Island, and Thorofare Island. The settlement patterns of Greenbush and Costigan follow the river's eastern bank along Main Rd, showing a reliance on the waterway and the north-south transport corridor. West of the river, the landscape transitions into the expansive Alton Bog, where drainage is defined by Birch Stream and Hemlock Stream. Local heritage is anchored by several small burial grounds, including Cedarvale Cem and Hemlock Stream Cem, which sit near the river's edge. The network of secondary roads like Argyle Rd and Southgate Rd suggests a community shaped by its proximity to both the river and the marshy interior lowlands.