11. Additionally, glacial drift is present in the watershed. 12. Glacial drift is also present in the watershed.13. A casing well was once dug through through glacial drift on the west bank of Marsh Creek. 14. The presence of glacial drift that gave the Northeast Kingdom its soil and its surface stones and boulders. 15. The channel of Horton Creek is sinuous and flows through glacial drift and a rock formation consisting of sandstone. 16. Glacial drift and boulders of the Catskill Formation and the Pocono Formation occur in the vicinity of Black Run.17. Though covered by Pleistocene glacial drift up to 200 feet thick, 1859 surveyors noted compass deflection while in the area. 18. The terrain is generally flat, and consists of glacial drift which is a mixture of various rocks, sand and clay. 19. The crater is well preserved but poorly exposed at the surface as the whole region is covered by glacial drift . 20. The channel of South Branch Tunkhannock Creek is sinuous and flows through glacial drift and rock formations consisting of sandstone.