@misc{indiciae56050bd54497,
  title = {Multiple ice flow directions during the Fraser Glaciation in the lower Skagit River drainage, northern Cascade Range, Washington},
  author = {Paul L. Heller},
  year = {1980},
  doi = {10.2307/1550716},
  url = {https://pubs.usgs.gov/publication/70012354},
  note = {Source identifier: 70012354}
}