Bellman, A. R.2022-12-082022-12-08https://hdl.handle.net/11124/15552Scale not given.Linen.Pen-and-ink.Claim mapElevation mapCross section.sheets 36 x 26 cmmine mapsmanuscript mapscross sectionsengNo Known Copyright: http://rightsstatements.org/vocab/NKC/1.0/.Mines and mineral resources -- Colorado -- Boulder County -- MapsStillImage