The range runs between Pico Peak and the town of Plymouth, where Coolidge grew up.

"Pico Peak" appears on the 1869 Beers Atlas of Rutland County, Walling's 1860 Map of the State of Vermont and Chace's 1854 Map of Rutland County (albeit reversed with Killington Peak).

The northwest side of Pico drains into Mendon Brook, thence into East Creek, Otter Creek, and Lake Champlain, which drains via the Saint Lawrence River into the Gulf of St. Lawrence in Quebec, Canada.

[3] Pico Mountain ski area — part of Killington Ski Resort since December 1997 — is located on the northwest side of Pico Peak, with its base lodge on U.S. Route 4.

The AT and LT formerly split 2 miles (3 km) north of Pico, on Deer Leap Mountain.