2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/169976We show that a finite numerical boundary slope of an essential surface in the exterior of a Montesinos knot is bounded above and below in terms of the numbers of positive/negative crossings of a specific minimal diagram of the knot.15 pages, 11 figuresGeometric Topology57M25text