- Western Terminus:
- Seven Lakes Drive in Harriman State Park
- Eastern Terminus:
- Palisades Parkway in Harriman State Park
- 5.59 miles
Lake Welch Drive is an east/west parkway crossing Harriman State Park. It extends from Seven Lakes Drive to the Palisades Parkway and provides access to Lake Welch, one of the lakes in the park. In most areas, it is a two-lane undivided road, although there are some sections with a grass median. There are some maps that label Lake Welch Drive as Lake Welch Parkway. This is an error; it is consistently signed as Lake Welch Drive.